diff --git a/core/includes/batch.inc b/core/includes/batch.inc
index 77fd3a2231b969267417fcc63ac2daf4380b2ab4..6d0c8356cad5af13dce86639e82765f1de95227d 100644
--- a/core/includes/batch.inc
+++ b/core/includes/batch.inc
@@ -14,7 +14,6 @@
  * @see batch_get()
  */
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\Timer;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Batch\Percentage;
diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 6b6d897e67922dd4dea46dc9c887f8347f975553..41c6eb0f49be081a6c5a6539923b632d9d3a6e1f 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -4,23 +4,15 @@
  * Functions that need to be loaded on every Drupal request.
  */
 
-use Drupal\Component\Datetime\DateTimePlus;
 use Drupal\Component\Utility\Crypt;
-use Drupal\Component\Utility\Environment;
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\DrupalKernel;
-use Drupal\Core\Extension\ExtensionDiscovery;
 use Drupal\Core\Logger\RfcLogLevel;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\Utility\Error;
-use Symfony\Component\ClassLoader\ApcClassLoader;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Minimum supported version of PHP.
diff --git a/core/includes/common.inc b/core/includes/common.inc
index 8681d81871cc0e98d31ea77c4fa93d8f7bbc69aa..31492ed4b2caca94e5e254fbbbf753d515797ed9 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -9,35 +9,18 @@
  */
 
 use Drupal\Component\Serialization\Json;
-use Drupal\Component\Serialization\Yaml;
-use Drupal\Component\Serialization\Exception\InvalidDataTypeException;
 use Drupal\Component\Utility\Bytes;
-use Drupal\Component\Utility\Crypt;
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\Number;
 use Drupal\Component\Utility\SortArray;
-use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Component\Utility\Tags;
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Core\Asset\AttachedAssets;
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\Render\Renderer;
-use Drupal\Core\Site\Settings;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
-use Drupal\Core\Url;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\Request;
 use Drupal\Core\PhpStorage\PhpStorageFactory;
-use Drupal\Component\Utility\NestedArray;
-use Drupal\Core\Datetime\DrupalDateTime;
-use Drupal\Core\Routing\GeneratorNotInitializedException;
 use Drupal\Core\StringTranslation\PluralTranslatableMarkup;
-use Drupal\Core\Template\Attribute;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\Element;
-use Drupal\Core\Session\AnonymousUserSession;
 
 /**
  * @defgroup php_wrappers PHP wrapper functions
diff --git a/core/includes/entity.inc b/core/includes/entity.inc
index d79381a01c9e31192181a25c14141809ca3979f6..70e8019a8242ebdc74e3a21b69c14dab3ee7dfaa 100644
--- a/core/includes/entity.inc
+++ b/core/includes/entity.inc
@@ -5,8 +5,6 @@
  * Entity API for handling entities like nodes or users.
  */
 
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Entity\EntityStorageException;
 use Drupal\Core\Entity\EntityInterface;
 
 /**
diff --git a/core/includes/file.inc b/core/includes/file.inc
index 4200b87b86e04e88b2432f2c708947591ace11a2..63f4bb36f5571a61a0c9ea200c0f37fa2aab4288 100644
--- a/core/includes/file.inc
+++ b/core/includes/file.inc
@@ -5,14 +5,12 @@
  * API for handling file uploads and server file management.
  */
 
-use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Component\PhpStorage\FileStorage;
 use Drupal\Component\Utility\Bytes;
 use Drupal\Core\File\FileSystem;
 use Drupal\Core\StreamWrapper\PublicStream;
-use Drupal\Core\StreamWrapper\StreamWrapperInterface;
 use Drupal\Core\StreamWrapper\PrivateStream;
 
 /**
diff --git a/core/includes/form.inc b/core/includes/form.inc
index 678a6402fa75e270880bff4c2c452d5ea5e4939c..a3d17a7f29fff15d4db4eec5da7a46af4df3cef3 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -5,12 +5,7 @@
  * Functions for form and batch generation and processing.
  */
 
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Component\Utility\Xss;
-use Drupal\Core\Database\Database;
-use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Form\OptGroup;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Template\Attribute;
 use Drupal\Core\Url;
diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index bd7b7ecd24b7e87ed4e448db1be6248abea46320..60ef2d7cdc9e9765f4deee2734e31004a3eec919 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -1,6 +1,5 @@
 <?php
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\DrupalKernel;
 use Drupal\Core\Config\BootstrapConfigStorageFactory;
diff --git a/core/includes/module.inc b/core/includes/module.inc
index 8f8bf9c046abd225fdad79c348f763fefdb8c41a..bc50d2c1c9644007b8b688ccca71841dec3c3815 100644
--- a/core/includes/module.inc
+++ b/core/includes/module.inc
@@ -5,7 +5,6 @@
  * API for loading and interacting with Drupal modules.
  */
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Extension\ExtensionDiscovery;
 
 /**
diff --git a/core/includes/pager.inc b/core/includes/pager.inc
index 7b106eaaf51db50c1485d8c7cc4c5db92cfbbc6a..796cc0137a1684fda9a6ebf60986b21dab123b0c 100644
--- a/core/includes/pager.inc
+++ b/core/includes/pager.inc
@@ -5,7 +5,6 @@
  * Functions to aid in presenting database results as a set of pages.
  */
 
-use Drupal\Core\Template\Attribute;
 use Drupal\Component\Utility\UrlHelper;
 
 /**
diff --git a/core/includes/schema.inc b/core/includes/schema.inc
index bba4eab46f07adb31bc219a5b80a075cfa09d47d..4712d3be10e92d79e27035c2cc875b5ee4b86c18 100644
--- a/core/includes/schema.inc
+++ b/core/includes/schema.inc
@@ -5,8 +5,6 @@
  * Schema API handling functions.
  */
 
-use Drupal\Core\Database\Database;
-
 /**
  * @addtogroup schemaapi
  * @{
diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 733fc9f2fdc1517e1ce968b5c8c3a8f29339f08a..106d30cbb15d8eff567dcbcca7bcbfa621761e0b 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -14,7 +14,6 @@
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Config\Config;
 use Drupal\Core\Config\StorageException;
 use Drupal\Core\Render\RenderableInterface;
diff --git a/core/includes/update.inc b/core/includes/update.inc
index 24eeddfd6571882429942f13cd45420b75066db2..68401a9deb2e4ea7b7b09122382105d488e419aa 100644
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -9,7 +9,6 @@
  */
 
 use Drupal\Component\Graph\Graph;
-use Drupal\Component\Utility\Html;
 use Drupal\Core\Utility\Error;
 
 /**
diff --git a/core/includes/utility.inc b/core/includes/utility.inc
index 4918719a55d69d6b523d975f8c39269d5af2230c..2bb65077621dc41dd60653ae4a3906b318809f2a 100644
--- a/core/includes/utility.inc
+++ b/core/includes/utility.inc
@@ -5,7 +5,6 @@
  * Miscellaneous functions.
  */
 
-use Drupal\Component\Utility\Variable;
 use Drupal\Core\PhpStorage\PhpStorageFactory;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\DrupalKernel;
diff --git a/core/lib/Drupal/Component/Gettext/PoMemoryWriter.php b/core/lib/Drupal/Component/Gettext/PoMemoryWriter.php
index d44f18d6995fb8f44192e106db070cdcfed5817a..3026c322017157bec0b77460174b97bc55bdf3f0 100644
--- a/core/lib/Drupal/Component/Gettext/PoMemoryWriter.php
+++ b/core/lib/Drupal/Component/Gettext/PoMemoryWriter.php
@@ -7,10 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoWriterInterface;
-use Drupal\Component\Gettext\PoHeader;
-use Drupal\Component\Gettext\PoItem;
-
 /**
  * Defines a Gettext PO memory writer, to be used by the installer.
  */
diff --git a/core/lib/Drupal/Component/Gettext/PoMetadataInterface.php b/core/lib/Drupal/Component/Gettext/PoMetadataInterface.php
index 5801daa2d971508f6d4f634cda5186a1ee0685b6..f3b54db8fc1e595afd900d03abfe9dee06d3c099 100644
--- a/core/lib/Drupal/Component/Gettext/PoMetadataInterface.php
+++ b/core/lib/Drupal/Component/Gettext/PoMetadataInterface.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoHeader;
-
 /**
  * Methods required for both reader and writer implementations.
  *
diff --git a/core/lib/Drupal/Component/Gettext/PoReaderInterface.php b/core/lib/Drupal/Component/Gettext/PoReaderInterface.php
index 49b73dffd51e0bd37f932aa46cb31ddb0335e5a5..c9beba1a77b9a9d5b179000726e45aa145237a41 100644
--- a/core/lib/Drupal/Component/Gettext/PoReaderInterface.php
+++ b/core/lib/Drupal/Component/Gettext/PoReaderInterface.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoMetadataInterface;
-
 /**
  * Shared interface definition for all Gettext PO Readers.
  */
diff --git a/core/lib/Drupal/Component/Gettext/PoStreamReader.php b/core/lib/Drupal/Component/Gettext/PoStreamReader.php
index 0cf52ad05f7ea91f27887bdef11f6317930aaae9..9e58d8056d855f0f1d3a7a28573048132e9ef2ad 100644
--- a/core/lib/Drupal/Component/Gettext/PoStreamReader.php
+++ b/core/lib/Drupal/Component/Gettext/PoStreamReader.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoReaderInterface;
-use Drupal\Component\Gettext\PoStreamInterface;
-use Drupal\Component\Gettext\PoHeader;
 use Drupal\Component\Utility\SafeMarkup;
 
 /**
diff --git a/core/lib/Drupal/Component/Gettext/PoStreamWriter.php b/core/lib/Drupal/Component/Gettext/PoStreamWriter.php
index 848171b94f630485c8d4bd29c14e50288cea1770..e804a2ea46e761bdd9c26d993e1929e19d02d1ce 100644
--- a/core/lib/Drupal/Component/Gettext/PoStreamWriter.php
+++ b/core/lib/Drupal/Component/Gettext/PoStreamWriter.php
@@ -7,12 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoHeader;
-use Drupal\Component\Gettext\PoItem;
-use Drupal\Component\Gettext\PoReaderInterface;
-use Drupal\Component\Gettext\PoWriterInterface;
-use Drupal\Component\Gettext\PoStreamInterface;
-
 /**
  * Defines a Gettext PO stream writer.
  */
diff --git a/core/lib/Drupal/Component/Gettext/PoWriterInterface.php b/core/lib/Drupal/Component/Gettext/PoWriterInterface.php
index 18206d9ea33a5c81e892efcf258c139959735328..fa4ece41d2a2de4ebd0e092ccbcdbc22a342595b 100644
--- a/core/lib/Drupal/Component/Gettext/PoWriterInterface.php
+++ b/core/lib/Drupal/Component/Gettext/PoWriterInterface.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\Component\Gettext;
 
-use Drupal\Component\Gettext\PoMetadataInterface;
-use Drupal\Component\Gettext\PoItem;
-
 /**
  * Shared interface definition for all Gettext PO Writers.
  */
diff --git a/core/lib/Drupal/Component/Plugin/Exception/InvalidDecoratedMethod.php b/core/lib/Drupal/Component/Plugin/Exception/InvalidDecoratedMethod.php
index 57fd8359e5f2d71b2cc30cc2592ed4e71bace2da..24427bf1dcc47d382773ba8ded253a4e90b7e730 100644
--- a/core/lib/Drupal/Component/Plugin/Exception/InvalidDecoratedMethod.php
+++ b/core/lib/Drupal/Component/Plugin/Exception/InvalidDecoratedMethod.php
@@ -6,7 +6,6 @@
 
 namespace Drupal\Component\Plugin\Exception;
 
-use Drupal\Component\Plugin\Exception\ExceptionInterface;
 use \BadMethodCallException;
 
 /**
diff --git a/core/lib/Drupal/Core/Action/ConfigurableActionBase.php b/core/lib/Drupal/Core/Action/ConfigurableActionBase.php
index e0368807f0701521571c01547724e116359d8570..8e3297299247c5ed88ac01bff6be1d539c9ea940 100644
--- a/core/lib/Drupal/Core/Action/ConfigurableActionBase.php
+++ b/core/lib/Drupal/Core/Action/ConfigurableActionBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Action;
 
 use Drupal\Component\Plugin\ConfigurablePluginInterface;
-use Drupal\Core\Action\ActionBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\PluginFormInterface;
 
diff --git a/core/lib/Drupal/Core/Ajax/AddCssCommand.php b/core/lib/Drupal/Core/Ajax/AddCssCommand.php
index c5a0208a10433059be4d90a7602b3fd16fcadf9a..f7d1677f2a3ba9d2a9dc4b23cd9a21c352d48600 100644
--- a/core/lib/Drupal/Core/Ajax/AddCssCommand.php
+++ b/core/lib/Drupal/Core/Ajax/AddCssCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * An AJAX command for adding css to the page via ajax.
  *
diff --git a/core/lib/Drupal/Core/Ajax/AfterCommand.php b/core/lib/Drupal/Core/Ajax/AfterCommand.php
index ae270302d322addc26d04c3848383901e7e56dfe..05cf95cf4f93e777979070d357a06b6cb4e97bc2 100644
--- a/core/lib/Drupal/Core/Ajax/AfterCommand.php
+++ b/core/lib/Drupal/Core/Ajax/AfterCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * An AJAX command for calling the jQuery after() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/AjaxResponse.php b/core/lib/Drupal/Core/Ajax/AjaxResponse.php
index c2e8967e2dbf846ae5e65532521ea5cc3f4f2acf..67723418f23f480a4bcbdd68664c73069df67bab 100644
--- a/core/lib/Drupal/Core/Ajax/AjaxResponse.php
+++ b/core/lib/Drupal/Core/Ajax/AjaxResponse.php
@@ -7,15 +7,10 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Asset\AttachedAssets;
 use Drupal\Core\Render\BubbleableMetadata;
-use Drupal\Core\Render\Renderer;
 use Drupal\Core\Render\AttachmentsInterface;
 use Drupal\Core\Render\AttachmentsTrait;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
 
 /**
  * JSON response object for AJAX requests.
diff --git a/core/lib/Drupal/Core/Ajax/AlertCommand.php b/core/lib/Drupal/Core/Ajax/AlertCommand.php
index 65a9f4604d736794fe39410eaff70581317b0ce7..dbfb0d59ac24d51853f11e68cad528b8507a6b97 100644
--- a/core/lib/Drupal/Core/Ajax/AlertCommand.php
+++ b/core/lib/Drupal/Core/Ajax/AlertCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * AJAX command for a javascript alert box.
  *
diff --git a/core/lib/Drupal/Core/Ajax/AppendCommand.php b/core/lib/Drupal/Core/Ajax/AppendCommand.php
index 041f7943000c201fe316e50b1224a85b065cb2d4..26061b2d375c96de680e1b19ef067bf3d94595dc 100644
--- a/core/lib/Drupal/Core/Ajax/AppendCommand.php
+++ b/core/lib/Drupal/Core/Ajax/AppendCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * An AJAX command for calling the jQuery append() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/BeforeCommand.php b/core/lib/Drupal/Core/Ajax/BeforeCommand.php
index 8d526286b8d93bfc2eb20eeecdebd4595af93fcf..7bf8f416d3ed57a653c71c398b4a401da9e0c257 100644
--- a/core/lib/Drupal/Core/Ajax/BeforeCommand.php
+++ b/core/lib/Drupal/Core/Ajax/BeforeCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * An AJAX command for calling the jQuery before() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/ChangedCommand.php b/core/lib/Drupal/Core/Ajax/ChangedCommand.php
index 7f30972b1ef5d0fe6a294dc8f44a2ec7419cf8e1..ec92f68d786056f2b34d00dc569f3702a74d7bbc 100644
--- a/core/lib/Drupal/Core/Ajax/ChangedCommand.php
+++ b/core/lib/Drupal/Core/Ajax/ChangedCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * An AJAX command for marking HTML elements as changed.
  *
diff --git a/core/lib/Drupal/Core/Ajax/CloseModalDialogCommand.php b/core/lib/Drupal/Core/Ajax/CloseModalDialogCommand.php
index 46d0080f98a9b930cc83190c76fe1d64b91f421b..64973ae6e2efc47b812f9033ce6314eb685d0b89 100644
--- a/core/lib/Drupal/Core/Ajax/CloseModalDialogCommand.php
+++ b/core/lib/Drupal/Core/Ajax/CloseModalDialogCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CloseDialogCommand;
-
 /**
  * Defines an AJAX command that closes the currently visible modal dialog.
  *
diff --git a/core/lib/Drupal/Core/Ajax/CssCommand.php b/core/lib/Drupal/Core/Ajax/CssCommand.php
index 1a14a40576438224695fdc7776d83f395a2b9295..24766f35369d16cb45348f3feffa483c087e4dc5 100644
--- a/core/lib/Drupal/Core/Ajax/CssCommand.php
+++ b/core/lib/Drupal/Core/Ajax/CssCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * An AJAX command for calling the jQuery css() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/DataCommand.php b/core/lib/Drupal/Core/Ajax/DataCommand.php
index a495f71a7412b48f0ff405c997c0ebecfee1c2c6..4604bf2b4577e8599988e2a14c381b4cfe62e3be 100644
--- a/core/lib/Drupal/Core/Ajax/DataCommand.php
+++ b/core/lib/Drupal/Core/Ajax/DataCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * An AJAX command for implementing jQuery's data() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/HtmlCommand.php b/core/lib/Drupal/Core/Ajax/HtmlCommand.php
index cbae08e9d271698caccf9c7036f4c147b3243010..96a8d336f9ae619d3a2440b10c65be71a8fc184c 100644
--- a/core/lib/Drupal/Core/Ajax/HtmlCommand.php
+++ b/core/lib/Drupal/Core/Ajax/HtmlCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * AJAX command for calling the jQuery html() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/InsertCommand.php b/core/lib/Drupal/Core/Ajax/InsertCommand.php
index 05a7fd188b4170ebf5349a08a529f7fe1d127521..8c477f5a06aa07d8a1770b362bccdd58a939b4e2 100644
--- a/core/lib/Drupal/Core/Ajax/InsertCommand.php
+++ b/core/lib/Drupal/Core/Ajax/InsertCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * Generic AJAX command for inserting content.
  *
diff --git a/core/lib/Drupal/Core/Ajax/InvokeCommand.php b/core/lib/Drupal/Core/Ajax/InvokeCommand.php
index 8c032106f6b0f6687f8437f5b44b9747190995af..6c1d16e7804fe6afca4e7c38913abd500acf46a4 100644
--- a/core/lib/Drupal/Core/Ajax/InvokeCommand.php
+++ b/core/lib/Drupal/Core/Ajax/InvokeCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * AJAX command for invoking an arbitrary jQuery method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/OpenDialogCommand.php b/core/lib/Drupal/Core/Ajax/OpenDialogCommand.php
index d373cf8feeea0be9897701de01f108b2be67c53c..3c351fdb7dee339839debc2a39c5fa8cd18e2e8c 100644
--- a/core/lib/Drupal/Core/Ajax/OpenDialogCommand.php
+++ b/core/lib/Drupal/Core/Ajax/OpenDialogCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * Defines an AJAX command to open certain content in a dialog.
  *
diff --git a/core/lib/Drupal/Core/Ajax/OpenModalDialogCommand.php b/core/lib/Drupal/Core/Ajax/OpenModalDialogCommand.php
index e9b2c4fed954ef8bcba761abacac0bbbecd097e8..519d192d044d50c5156b6cf6b0f26f8b918a876a 100644
--- a/core/lib/Drupal/Core/Ajax/OpenModalDialogCommand.php
+++ b/core/lib/Drupal/Core/Ajax/OpenModalDialogCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\OpenDialogCommand;
-
 /**
  * Defines an AJAX command to open certain content in a dialog in a modal dialog.
  *
diff --git a/core/lib/Drupal/Core/Ajax/PrependCommand.php b/core/lib/Drupal/Core/Ajax/PrependCommand.php
index c6cc0361cf5e8136868ebe96ce901ddc4261588a..0ccc6d80df813717408286c89213795a810130c8 100644
--- a/core/lib/Drupal/Core/Ajax/PrependCommand.php
+++ b/core/lib/Drupal/Core/Ajax/PrependCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * AJAX command for calling the jQuery insert() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/RedirectCommand.php b/core/lib/Drupal/Core/Ajax/RedirectCommand.php
index f7d05e140f8e2fcf832d59a5787d4a5dcb82a2e8..cd4c6d536dab9bb866cf9843e56dbbcae0b16abc 100644
--- a/core/lib/Drupal/Core/Ajax/RedirectCommand.php
+++ b/core/lib/Drupal/Core/Ajax/RedirectCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * Defines an AJAX command to set the window.location, loading that URL.
  *
diff --git a/core/lib/Drupal/Core/Ajax/RemoveCommand.php b/core/lib/Drupal/Core/Ajax/RemoveCommand.php
index f4e6bbe35bdc7c796eb893f8fbf96684b283dbdf..5131b20c02363459be54df624276b0a51213f3ec 100644
--- a/core/lib/Drupal/Core/Ajax/RemoveCommand.php
+++ b/core/lib/Drupal/Core/Ajax/RemoveCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * AJAX command for calling the jQuery remove() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/ReplaceCommand.php b/core/lib/Drupal/Core/Ajax/ReplaceCommand.php
index b8cc881a4453bf3bdea13e7b4179916129e8bbc1..615f4eb561a7d2126d2380df173802c7b4f59909 100644
--- a/core/lib/Drupal/Core/Ajax/ReplaceCommand.php
+++ b/core/lib/Drupal/Core/Ajax/ReplaceCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\InsertCommand;
-
 /**
  * AJAX command for calling the jQuery replace() method.
  *
diff --git a/core/lib/Drupal/Core/Ajax/RestripeCommand.php b/core/lib/Drupal/Core/Ajax/RestripeCommand.php
index 834e555b560065e27376d59e77dfbc289b735572..711950f4c57b222b88686a54665f123c2432f8a0 100644
--- a/core/lib/Drupal/Core/Ajax/RestripeCommand.php
+++ b/core/lib/Drupal/Core/Ajax/RestripeCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * AJAX command for resetting the striping on a table.
  *
diff --git a/core/lib/Drupal/Core/Ajax/SetDialogTitleCommand.php b/core/lib/Drupal/Core/Ajax/SetDialogTitleCommand.php
index 9a2c5ac65b2b16248c5246eebb4d0f96724493c3..d4021cc589c26933eab6f9bb8fe5d1d2bbfe4535 100644
--- a/core/lib/Drupal/Core/Ajax/SetDialogTitleCommand.php
+++ b/core/lib/Drupal/Core/Ajax/SetDialogTitleCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\SetDialogOptionCommand;
-
 /**
  * Defines an AJAX command that sets jQuery UI dialog properties.
  *
diff --git a/core/lib/Drupal/Core/Ajax/SettingsCommand.php b/core/lib/Drupal/Core/Ajax/SettingsCommand.php
index e3347701604c8719c5dfb858da77b0158a2d7aad..b4ba8cd90f1e5cecb7f2f05c1ed8fc7939a0a902 100644
--- a/core/lib/Drupal/Core/Ajax/SettingsCommand.php
+++ b/core/lib/Drupal/Core/Ajax/SettingsCommand.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Ajax;
 
-use Drupal\Core\Ajax\CommandInterface;
-
 /**
  * AJAX command for adjusting Drupal's JavaScript settings.
  *
diff --git a/core/lib/Drupal/Core/Asset/AssetDumper.php b/core/lib/Drupal/Core/Asset/AssetDumper.php
index cc5c97a81b63c7656c22aa9bcfe2c8fbd114c843..0504fa454640a608f7ac8b2507b124d55c6e601d 100644
--- a/core/lib/Drupal/Core/Asset/AssetDumper.php
+++ b/core/lib/Drupal/Core/Asset/AssetDumper.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Asset;
 
-use Drupal\Core\Asset\AssetDumperInterface;
 use Drupal\Component\Utility\Crypt;
 
 /**
diff --git a/core/lib/Drupal/Core/Asset/CssCollectionGrouper.php b/core/lib/Drupal/Core/Asset/CssCollectionGrouper.php
index 0a751e13ccd0fcf9a6ed316bebd7e38426c67c7d..6ed066252b8ec48fd12c5ce91c63aabacb093687 100644
--- a/core/lib/Drupal/Core/Asset/CssCollectionGrouper.php
+++ b/core/lib/Drupal/Core/Asset/CssCollectionGrouper.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Asset;
 
-use Drupal\Core\Asset\AssetCollectionGrouperInterface;
-
 /**
  * Groups CSS assets.
  */
diff --git a/core/lib/Drupal/Core/Asset/CssOptimizer.php b/core/lib/Drupal/Core/Asset/CssOptimizer.php
index c85caafe8abccf15d9f92880c331868ef82b9ea0..dc34a237abdf008b588d1ca3298bc7eec539b1f2 100644
--- a/core/lib/Drupal/Core/Asset/CssOptimizer.php
+++ b/core/lib/Drupal/Core/Asset/CssOptimizer.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Asset;
 
-use Drupal\Core\Asset\AssetOptimizerInterface;
 use Drupal\Component\Utility\Unicode;
 
 /**
diff --git a/core/lib/Drupal/Core/Asset/JsCollectionGrouper.php b/core/lib/Drupal/Core/Asset/JsCollectionGrouper.php
index f23cf7759c19b619eae4c5dfde1caa6fd5ca364b..6ea34e41b27a53a687ebd1e0f47aa68d38ae5ee6 100644
--- a/core/lib/Drupal/Core/Asset/JsCollectionGrouper.php
+++ b/core/lib/Drupal/Core/Asset/JsCollectionGrouper.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Asset;
 
-use Drupal\Core\Asset\AssetCollectionGrouperInterface;
-
 /**
  * Groups JavaScript assets.
  */
diff --git a/core/lib/Drupal/Core/Asset/JsOptimizer.php b/core/lib/Drupal/Core/Asset/JsOptimizer.php
index 546733ce5159dd7ef612dde908d5ea4af3ed016e..e07ca9950ef8fb769b9172a8da24a8238ce387b0 100644
--- a/core/lib/Drupal/Core/Asset/JsOptimizer.php
+++ b/core/lib/Drupal/Core/Asset/JsOptimizer.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Asset;
 
-use Drupal\Core\Asset\AssetOptimizerInterface;
 use Drupal\Component\Utility\Unicode;
 
 /**
diff --git a/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php b/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
index 427640f6dec7af2c744836416363c551eab1e5a0..9d6e796e9ee6ae476c41ce6f2feec7d2377870d2 100644
--- a/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
+++ b/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Asset\Exception\InvalidLibrariesOverrideSpecificationException;
 use Drupal\Core\Asset\Exception\InvalidLibraryFileException;
 use Drupal\Core\Asset\Exception\LibraryDefinitionMissingLicenseException;
-use Drupal\Core\Extension\Extension;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Theme\ThemeManagerInterface;
 use Drupal\Component\Serialization\Exception\InvalidDataTypeException;
diff --git a/core/lib/Drupal/Core/Cache/CacheFactory.php b/core/lib/Drupal/Core/Cache/CacheFactory.php
index 0a0a977738f4e7099eee1616ee597a1e05abec7a..a8a5c41eac368c417f4c2dae764390a0bd330a32 100644
--- a/core/lib/Drupal/Core/Cache/CacheFactory.php
+++ b/core/lib/Drupal/Core/Cache/CacheFactory.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Site\Settings;
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
 use Symfony\Component\DependencyInjection\ContainerAwareTrait;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 
 class CacheFactory implements CacheFactoryInterface,  ContainerAwareInterface {
 
diff --git a/core/lib/Drupal/Core/Condition/ConditionPluginBase.php b/core/lib/Drupal/Core/Condition/ConditionPluginBase.php
index 6f6ffc3e54456842e3180b39a2ce810f8cf220ca..5237d0d29ac70ae6bab301d31eca9cbc8dd9bcf8 100644
--- a/core/lib/Drupal/Core/Condition/ConditionPluginBase.php
+++ b/core/lib/Drupal/Core/Condition/ConditionPluginBase.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\Condition;
 
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Executable\ExecutableManagerInterface;
 use Drupal\Core\Executable\ExecutablePluginBase;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/lib/Drupal/Core/Config/CachedStorage.php b/core/lib/Drupal/Core/Config/CachedStorage.php
index 590d857eccacf8030872daf83a5bf38a065badeb..eb9749ebe8d41eda6ea31617ba30a331a8abd540 100644
--- a/core/lib/Drupal/Core/Config/CachedStorage.php
+++ b/core/lib/Drupal/Core/Config/CachedStorage.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Config;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 
diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index 0cc5d00a35c29b2c1ee02bdb953fe600cad4a5c5..7209030dd3edb88fc1a0bd5f62ccfd938e3afd7a 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\Entity\ConfigDependencyManager;
 use Drupal\Core\Config\Entity\ConfigEntityDependency;
-use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Site\Settings;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
index 7e5c3a4a60798dea5c1c30acb4d2d568316c6042..0ed51620d24631a4a9bd1292e6b4057d88f17c1a 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
@@ -9,14 +9,12 @@
 
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Config\ConfigException;
 use Drupal\Core\Config\Schema\SchemaIncompleteException;
 use Drupal\Core\Entity\Entity;
 use Drupal\Core\Config\ConfigDuplicateUUIDException;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Entity\EntityWithPluginCollectionInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Plugin\PluginDependencyTrait;
 
 /**
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorageInterface.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorageInterface.php
index 8bb9e43cb34413ca827f506a340bb9d7d8b64f1b..55c119323b749fa9d3d7603b335a54f74796d726 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorageInterface.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorageInterface.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Config\Entity;
 
-use Drupal\Core\Config\Config;
 use Drupal\Core\Entity\EntityStorageInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/Config/TypedConfigManager.php b/core/lib/Drupal/Core/Config/TypedConfigManager.php
index 625e1eabaa3f6099b0cbefb868a7de3f9eb5be80..ca0eb507087c4b57d80b89f6633eb625e27718ac 100644
--- a/core/lib/Drupal/Core/Config/TypedConfigManager.php
+++ b/core/lib/Drupal/Core/Config/TypedConfigManager.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Cache\CacheBackendInterface;
-use Drupal\Core\Config\Schema\ArrayElement;
 use Drupal\Core\Config\Schema\ConfigSchemaAlterException;
 use Drupal\Core\Config\Schema\ConfigSchemaDiscovery;
 use Drupal\Core\Extension\ModuleHandlerInterface;
diff --git a/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
index c4d482eae7833754e68bdff2ee16fc64b7c1c89f..a20e58d672f19d7db8c98c9c474ea9c544096baa 100644
--- a/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Database\Driver\mysql;
 
-use Drupal\Core\Database\Database;
 use Drupal\Core\Database\Query\Condition;
 use Drupal\Core\Database\SchemaException;
 use Drupal\Core\Database\SchemaObjectExistsException;
diff --git a/core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php
index ff38a22c5b84604b0ba42a2bd07696c54ab2834f..b5ef45d18e709be565cd45cd6529ced9d6e86387 100644
--- a/core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php
@@ -10,9 +10,6 @@
 use Drupal\Core\Database\Database;
 use Drupal\Core\Database\Connection as DatabaseConnection;
 use Drupal\Core\Database\DatabaseNotFoundException;
-use Drupal\Core\Database\StatementInterface;
-use Drupal\Core\Database\IntegrityConstraintViolationException;
-use Drupal\Core\Database\DatabaseExceptionWrapper;
 
 /**
  * @addtogroup database
diff --git a/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
index 0828d5929c21ffbd6edb37fffb234a78bfa8e462..cd22b94e344aad2f74a51b20f0445d6b9e996d52 100644
--- a/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
@@ -8,8 +8,6 @@
 namespace Drupal\Core\Database\Driver\pgsql;
 
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Database\Database;
-use Drupal\Core\Database\Query\Condition;
 use Drupal\Core\Database\SchemaObjectExistsException;
 use Drupal\Core\Database\SchemaObjectDoesNotExistException;
 use Drupal\Core\Database\Schema as DatabaseSchema;
diff --git a/core/lib/Drupal/Core/Database/Query/PagerSelectExtender.php b/core/lib/Drupal/Core/Database/Query/PagerSelectExtender.php
index bc5c5335ab27016daa8fbeafe3f0f62590f6f974..95cdf53dcd871979edc8e35dd67962eaf24df129 100644
--- a/core/lib/Drupal/Core/Database/Query/PagerSelectExtender.php
+++ b/core/lib/Drupal/Core/Database/Query/PagerSelectExtender.php
@@ -8,8 +8,6 @@
 namespace Drupal\Core\Database\Query;
 
 use Drupal\Core\Database\Connection;
-use Drupal\Core\Database\Query\SelectExtender;
-use Drupal\Core\Database\Query\SelectInterface;
 
 /**
  * Query extender for pager queries.
diff --git a/core/lib/Drupal/Core/Database/Schema.php b/core/lib/Drupal/Core/Database/Schema.php
index f064156f445b0688676c80889c31af1c1f18d5c6..8b6fa57ec8b502cd559cb8213d48e47009e5b23a 100644
--- a/core/lib/Drupal/Core/Database/Schema.php
+++ b/core/lib/Drupal/Core/Database/Schema.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Database;
 
-use Drupal\Core\Database\SchemaObjectExistsException;
 use Drupal\Core\Database\Query\Condition;
 use Drupal\Core\Database\Query\PlaceholderInterface;
 
diff --git a/core/lib/Drupal/Core/Datetime/DateFormatInterface.php b/core/lib/Drupal/Core/Datetime/DateFormatInterface.php
index 162ec3bf0469355d6aa409047327799ac30ccd97..810af6d7c1291cbcc5eb5d0f35b279d45e845ac3 100644
--- a/core/lib/Drupal/Core/Datetime/DateFormatInterface.php
+++ b/core/lib/Drupal/Core/Datetime/DateFormatInterface.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Datetime;
 
 use Drupal\Core\Config\Entity\ConfigEntityInterface;
-use Drupal\Core\Datetime\DrupalDateTime;
 
 /**
  * Provides an interface defining a date format.
diff --git a/core/lib/Drupal/Core/Datetime/DateFormatter.php b/core/lib/Drupal/Core/Datetime/DateFormatter.php
index be233033235a5497893bb82934b77cda16857e27..d288fee4c2daf7976e8abc6f4ce035bd57688451 100644
--- a/core/lib/Drupal/Core/Datetime/DateFormatter.php
+++ b/core/lib/Drupal/Core/Datetime/DateFormatter.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Datetime;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
-use Drupal\Core\Datetime\DrupalDateTime;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Language\Language;
 use Drupal\Core\Language\LanguageManagerInterface;
diff --git a/core/lib/Drupal/Core/Datetime/DateHelper.php b/core/lib/Drupal/Core/Datetime/DateHelper.php
index 9cdd1f120eb84529d6c0706565f6e7cb24d5a006..4ab47768b03bde074817a244b13ef489d0820142 100644
--- a/core/lib/Drupal/Core/Datetime/DateHelper.php
+++ b/core/lib/Drupal/Core/Datetime/DateHelper.php
@@ -16,8 +16,6 @@
  */
 namespace Drupal\Core\Datetime;
 
-use Drupal\Core\Datetime\DrupalDateTime;
-
 /**
  * Defines Gregorian Calendar date values.
  */
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/ProxyServicesPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/ProxyServicesPass.php
index 90b1755dcf2e90b715d2416d9b67fb92a320a8f7..ac424ab64ff54095dab599f76e62b504c22f9e11 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/ProxyServicesPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/ProxyServicesPass.php
@@ -10,8 +10,6 @@
 use Drupal\Component\ProxyBuilder\ProxyBuilder;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\DependencyInjection\Definition;
-use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 use Symfony\Component\DependencyInjection\Reference;
 
 /**
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterStreamWrappersPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterStreamWrappersPass.php
index 4659cb04fff2ea1d0d54f0c91a42ca6ab9b0439d..b46ae2dc2c02e07d4ac9fa978c129311c7c67646 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterStreamWrappersPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterStreamWrappersPass.php
@@ -7,10 +7,8 @@
 
 namespace Drupal\Core\DependencyInjection\Compiler;
 
-use Drupal\Core\StreamWrapper\StreamWrapperInterface;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\DependencyInjection\Reference;
 
 /**
  * Adds services tagged 'stream_wrapper' to the stream_wrapper_manager service.
diff --git a/core/lib/Drupal/Core/DrupalKernel.php b/core/lib/Drupal/Core/DrupalKernel.php
index 16b3baca2a18f669c48193eefb0c3406741629e9..0c16cb35cc116908b0ca451872ed3c08a3319149 100644
--- a/core/lib/Drupal/Core/DrupalKernel.php
+++ b/core/lib/Drupal/Core/DrupalKernel.php
@@ -22,14 +22,12 @@
 use Drupal\Core\File\MimeType\MimeTypeGuesser;
 use Drupal\Core\Http\TrustedHostsRequestFactory;
 use Drupal\Core\Language\Language;
-use Drupal\Core\PageCache\RequestPolicyInterface;
 use Drupal\Core\Site\Settings;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
diff --git a/core/lib/Drupal/Core/Entity/Controller/EntityListController.php b/core/lib/Drupal/Core/Entity/Controller/EntityListController.php
index 1b081bb974d76a62cd586e7d3d8c3ef02324ab1c..1c7e7462bcbe6a3f28eb57f78d4089be38f19e29 100644
--- a/core/lib/Drupal/Core/Entity/Controller/EntityListController.php
+++ b/core/lib/Drupal/Core/Entity/Controller/EntityListController.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Entity\Controller;
 
 use Drupal\Core\Controller\ControllerBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Defines a generic controller to list entities.
diff --git a/core/lib/Drupal/Core/Entity/Entity.php b/core/lib/Drupal/Core/Entity/Entity.php
index 74ce4e78e231a09f27722aa7c6e324e4650cc64e..fa1f8adcd5a1d88f92efc46257ddabc96de56ed4 100644
--- a/core/lib/Drupal/Core/Entity/Entity.php
+++ b/core/lib/Drupal/Core/Entity/Entity.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\RefinableCacheableDependencyTrait;
 use Drupal\Core\DependencyInjection\DependencySerializationTrait;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\Entity\Exception\ConfigEntityIdLengthException;
 use Drupal\Core\Entity\Exception\UndefinedLinkTemplateException;
diff --git a/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php b/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
index 7b320e1682578f335e03454c3e76a193fc70ab90..75e4ae8b9dcced70040004c0ff4b766264b61f66 100644
--- a/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
+++ b/core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Form\ConfirmFormHelper;
 use Drupal\Core\Form\ConfirmFormInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Provides a generic base class for an entity-based confirmation form.
diff --git a/core/lib/Drupal/Core/Entity/EntityListBuilder.php b/core/lib/Drupal/Core/Entity/EntityListBuilder.php
index 5cb89f794d181ac2ca8012419ef7b04c0fa8a76e..3e2d3513b0893eb8e7e5402544d22b519ed84c7c 100644
--- a/core/lib/Drupal/Core/Entity/EntityListBuilder.php
+++ b/core/lib/Drupal/Core/Entity/EntityListBuilder.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Entity;
 
-use Drupal\Core\Extension\ModuleHandlerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/Entity/EntityManager.php b/core/lib/Drupal/Core/Entity/EntityManager.php
index da4fec06a6d8559651173ff4979c8a073665a98e..1bd768523e205c8cf3b63a99d3a4b35dc874c843 100644
--- a/core/lib/Drupal/Core/Entity/EntityManager.php
+++ b/core/lib/Drupal/Core/Entity/EntityManager.php
@@ -24,7 +24,6 @@
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\Core\Field\FieldStorageDefinitionListenerInterface;
 use Drupal\Core\KeyValueStore\KeyValueFactoryInterface;
-use Drupal\Core\KeyValueStore\KeyValueStoreInterface;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Plugin\DefaultPluginManager;
diff --git a/core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php b/core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php
index 4b7de43cc7cec37b9a70b5927cf66899462c5c14..e233e2f0d43f3c24897bad91ea6eb2db78132c8f 100644
--- a/core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php
+++ b/core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Entity\Query\Sql;
 
 use Drupal\Core\Database\Connection;
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Entity\Query\QueryBase;
 use Drupal\Core\Entity\Query\QueryFactoryInterface;
diff --git a/core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php b/core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php
index d2da0fd665112270a731e25c0f12925f169e668e..0d8d9da0cbc9fe08c26e6f0cd8735a3fd6bf482f 100644
--- a/core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php
+++ b/core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php
@@ -12,9 +12,7 @@
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Path\CurrentPathStack;
 use Drupal\Core\Path\PathMatcherInterface;
-use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\Core\Url;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
diff --git a/core/lib/Drupal/Core/EventSubscriber/AnonymousUserResponseSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/AnonymousUserResponseSubscriber.php
index f73437afb14d01ea554223fe02600f0b7123cecb..1efc7170fbc2144296469d1ac71cc6799ac5fe8e 100644
--- a/core/lib/Drupal/Core/EventSubscriber/AnonymousUserResponseSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/AnonymousUserResponseSubscriber.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Cache\CacheableResponseInterface;
 use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
diff --git a/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php
index 0acda56ef8aef237a3bbf86ba548bc98f57a4668..da6327d552876f9bcbd1fdc7f4e64e5de9f4bf36 100644
--- a/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php
@@ -15,7 +15,6 @@
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\RenderContext;
 use Drupal\Core\Render\RendererInterface;
-use Drupal\Core\Routing\RouteMatchInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
diff --git a/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
index f7d513b0915dde9b3ccf516ccec5a1049b6b8e03..b625f59b4b2d1ea7fcf5ddf8cf9c724aa015e185 100644
--- a/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
@@ -10,19 +10,15 @@
 use Drupal\Component\Datetime\DateTimePlus;
 use Drupal\Core\Cache\CacheableResponseInterface;
 use Drupal\Core\Cache\Context\CacheContextsManager;
-use Drupal\Core\Config\Config;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\PageCache\RequestPolicyInterface;
 use Drupal\Core\PageCache\ResponsePolicyInterface;
 use Drupal\Core\Site\Settings;
-use Symfony\Component\HttpFoundation\BinaryFileResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\StreamedResponse;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/EventSubscriber/PathRootsSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/PathRootsSubscriber.php
index 8d967672db765275c453f642507499e001b8fdca..7b2cc7c99c53329baaa99e89e55717ad6e463e65 100644
--- a/core/lib/Drupal/Core/EventSubscriber/PathRootsSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/PathRootsSubscriber.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Routing\RouteBuildEvent;
 use Drupal\Core\Routing\RoutingEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\Routing\RouteCollection;
 
 /**
  * Provides all available first bits of all route paths.
diff --git a/core/lib/Drupal/Core/EventSubscriber/RouterRebuildSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/RouterRebuildSubscriber.php
index 584b141f2bf71d2e56f84e19638953345e4f381c..9ada39ce3c65dd7dbfd380ff8b0f387efec5becd 100644
--- a/core/lib/Drupal/Core/EventSubscriber/RouterRebuildSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/RouterRebuildSubscriber.php
@@ -7,11 +7,7 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Lock\LockBackendInterface;
 use Drupal\Core\Routing\RouteBuilderInterface;
-use Drupal\Core\Routing\RoutingEvents;
-use Symfony\Component\EventDispatcher\Event;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\PostResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
diff --git a/core/lib/Drupal/Core/Executable/ExecutablePluginBase.php b/core/lib/Drupal/Core/Executable/ExecutablePluginBase.php
index c438e1d6e4af1edc9c58787fc88496b53cca2dd3..ac075729e0d963c1332fa9f68099dfd87b535662 100644
--- a/core/lib/Drupal/Core/Executable/ExecutablePluginBase.php
+++ b/core/lib/Drupal/Core/Executable/ExecutablePluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Executable;
 
 use Drupal\Core\Plugin\ContextAwarePluginBase;
-use Symfony\Component\Validator\Validation;
 use Drupal\Component\Plugin\Exception\PluginException;
 
 /**
diff --git a/core/lib/Drupal/Core/Extension/ModuleHandler.php b/core/lib/Drupal/Core/Extension/ModuleHandler.php
index f97897c18e0e08866eb3c5d3cab90cca5715884a..b9a9a3e4974cf87174115480d533edcaed4c2e0a 100644
--- a/core/lib/Drupal/Core/Extension/ModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/ModuleHandler.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Graph\Graph;
 use Drupal\Component\Utility\NestedArray;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheBackendInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/Extension/module.api.php b/core/lib/Drupal/Core/Extension/module.api.php
index 414e517bc4aae7b31b0cae089a3a91550ff4124a..7d13f745d2da64e39ced0a622b7fe783a32cfea2 100644
--- a/core/lib/Drupal/Core/Extension/module.api.php
+++ b/core/lib/Drupal/Core/Extension/module.api.php
@@ -6,7 +6,6 @@
  */
 
 use Drupal\Core\Database\Database;
-use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\Url;
 use Drupal\Core\Utility\UpdateException;
 
diff --git a/core/lib/Drupal/Core/Field/FieldConfigBase.php b/core/lib/Drupal/Core/Field/FieldConfigBase.php
index e3728be01c8125ddc4933d53954ffe473996c0d7..87a5c91c2c20e3d6aeb0c6803ea257d0885d5b71 100644
--- a/core/lib/Drupal/Core/Field/FieldConfigBase.php
+++ b/core/lib/Drupal/Core/Field/FieldConfigBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Field;
 
-use Drupal\Component\Plugin\DependentPluginInterface;
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\FieldableEntityInterface;
diff --git a/core/lib/Drupal/Core/Field/FieldFilteredMarkup.php b/core/lib/Drupal/Core/Field/FieldFilteredMarkup.php
index 78900a924598001b768f208b864f5f61ac2705d3..8dcadca6989d0a27ecd13122a7e704513a5ceb75 100644
--- a/core/lib/Drupal/Core/Field/FieldFilteredMarkup.php
+++ b/core/lib/Drupal/Core/Field/FieldFilteredMarkup.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Render\MarkupTrait;
-use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\Xss;
 
 /**
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
index b98fc4502775208ef1ad62ff3623d6f3cab5c1f9..8a4a602790565bb555d224da2762e56919470a6f 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Logger\LoggerChannelFactoryInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceIdFormatter.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceIdFormatter.php
index 3b58c68f356db4a35f224df55456329c3239b30f..2cf8c2075ebedfdd5c7f136321e4c002f36c4efc 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceIdFormatter.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceIdFormatter.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Field\Plugin\Field\FieldFormatter;
 
 use Drupal\Core\Field\FieldItemListInterface;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Plugin implementation of the 'entity reference ID' formatter.
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php
index 5ccc6d29515f521ef67b337fc87359d54448549c..cd4887879fce547e97e28ae954019296f1f1149a 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\Core\Field\FieldItemBase;
-use Drupal\Core\TypedData\DataDefinition;
 
 /**
  * Defines the 'map' entity field type.
diff --git a/core/lib/Drupal/Core/Form/ConfigFormBase.php b/core/lib/Drupal/Core/Form/ConfigFormBase.php
index 5ed650a613ca69a50988a14dcae1aab953e6998b..ee50389b861a428d09ef3ab22c5cf553e507b7fa 100644
--- a/core/lib/Drupal/Core/Form/ConfigFormBase.php
+++ b/core/lib/Drupal/Core/Form/ConfigFormBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Form;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
-use Drupal\Core\Form\FormBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/Form/FormCache.php b/core/lib/Drupal/Core/Form/FormCache.php
index b091ed8c7258a8b521490d733c1806f553fe347e..63273d6cc6cfcb287f44f93e882f6eaac4784a8e 100644
--- a/core/lib/Drupal/Core/Form/FormCache.php
+++ b/core/lib/Drupal/Core/Form/FormCache.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Form;
 
 use Drupal\Component\Utility\Crypt;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Access\CsrfTokenGenerator;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\KeyValueStore\KeyValueExpirableFactoryInterface;
diff --git a/core/lib/Drupal/Core/ImageToolkit/ImageToolkitBase.php b/core/lib/Drupal/Core/ImageToolkit/ImageToolkitBase.php
index 4481af3eabab759b63fcf6e9fb1482f7580c3cb6..eab55c1259466010592a33fd3fa57c078d607c91 100644
--- a/core/lib/Drupal/Core/ImageToolkit/ImageToolkitBase.php
+++ b/core/lib/Drupal/Core/ImageToolkit/ImageToolkitBase.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Plugin\Exception\PluginNotFoundException;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Image\ImageInterface;
 use Drupal\Core\Plugin\PluginBase;
 use Psr\Log\LoggerInterface;
 
diff --git a/core/lib/Drupal/Core/ImageToolkit/ImageToolkitInterface.php b/core/lib/Drupal/Core/ImageToolkit/ImageToolkitInterface.php
index 1cf350e28f23cc966842227e4f07facc59bcab7a..c7b064ccab99e664e835f2b35f393e5066e946c9 100644
--- a/core/lib/Drupal/Core/ImageToolkit/ImageToolkitInterface.php
+++ b/core/lib/Drupal/Core/ImageToolkit/ImageToolkitInterface.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Plugin\PluginFormInterface;
-use Drupal\Core\Image\ImageInterface;
 use Drupal\Component\Plugin\PluginInspectionInterface;
 
 /**
diff --git a/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseExpirableFactory.php b/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseExpirableFactory.php
index ff9fb14c7d710ee493b6a3f0358428dce4a85352..583bcf0865aac067bfd6ef9bb2c8c50a7d1fb86c 100644
--- a/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseExpirableFactory.php
+++ b/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseExpirableFactory.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\KeyValueStore;
 
 use Drupal\Component\Serialization\SerializationInterface;
-use Drupal\Core\DestructableInterface;
 use Drupal\Core\Database\Connection;
 
 /**
diff --git a/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseFactory.php b/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseFactory.php
index fda143dc568e6055d1fcd221caa017a7124bf7e9..a35d97997394f0b1e6e9780a60476dd1350babad 100644
--- a/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseFactory.php
+++ b/core/lib/Drupal/Core/KeyValueStore/KeyValueDatabaseFactory.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Serialization\SerializationInterface;
 use Drupal\Core\Database\Connection;
-use Drupal\Core\Database\Database;
 
 /**
  * Defines the key/value store factory for the database backend.
diff --git a/core/lib/Drupal/Core/KeyValueStore/KeyValueExpirableFactory.php b/core/lib/Drupal/Core/KeyValueStore/KeyValueExpirableFactory.php
index 0c7b0a5508545bd10e93efdeaaa26be44d36209f..50eafe729f288acd7efc4e5a82d4a8bac13d4924 100644
--- a/core/lib/Drupal/Core/KeyValueStore/KeyValueExpirableFactory.php
+++ b/core/lib/Drupal/Core/KeyValueStore/KeyValueExpirableFactory.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\KeyValueStore;
 
-use Symfony\Component\DependencyInjection\ContainerInterface;
-
 /**
  * Defines the key/value store factory.
  */
diff --git a/core/lib/Drupal/Core/Language/LanguageManagerInterface.php b/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
index 950fc698930560f451ea52837ab52cbe0b4175d2..ef5fcbdbd9f0ec10e5e05211f906fcfad6a15cb5 100644
--- a/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
+++ b/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Language;
 
-use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Core\Url;
 
 /**
diff --git a/core/lib/Drupal/Core/Menu/MenuLinkTree.php b/core/lib/Drupal/Core/Menu/MenuLinkTree.php
index 6307c4970668ea8ca397837455796fadd9fd7b6c..5b3aee85fb8848592618c83669abbc1c06619128 100644
--- a/core/lib/Drupal/Core/Menu/MenuLinkTree.php
+++ b/core/lib/Drupal/Core/Menu/MenuLinkTree.php
@@ -10,9 +10,7 @@
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Access\AccessResultInterface;
 use Drupal\Core\Cache\CacheableMetadata;
-use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Controller\ControllerResolverInterface;
-use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Template\Attribute;
 
diff --git a/core/lib/Drupal/Core/Menu/Plugin/Block/LocalActionsBlock.php b/core/lib/Drupal/Core/Menu/Plugin/Block/LocalActionsBlock.php
index 7b1dc3a558fbc150d56bb6ed371b98a4d31fb67d..42a79fc435d1e0b563ded9342ec9e71bb538dbd4 100644
--- a/core/lib/Drupal/Core/Menu/Plugin/Block/LocalActionsBlock.php
+++ b/core/lib/Drupal/Core/Menu/Plugin/Block/LocalActionsBlock.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Menu\Plugin\Block;
 
 use Drupal\Core\Block\BlockBase;
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Menu\LocalActionManagerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/lib/Drupal/Core/ParamConverter/ParamConverterManager.php b/core/lib/Drupal/Core/ParamConverter/ParamConverterManager.php
index 997749f5c4813bf4b3f3a1a257577151f0d6687d..1c515d26cf39d3ec3f906f05ebce88f721061e86 100644
--- a/core/lib/Drupal/Core/ParamConverter/ParamConverterManager.php
+++ b/core/lib/Drupal/Core/ParamConverter/ParamConverterManager.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\Core\ParamConverter;
 
-use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\Routing\RouteCollection;
 
diff --git a/core/lib/Drupal/Core/Path/AliasWhitelist.php b/core/lib/Drupal/Core/Path/AliasWhitelist.php
index fc26b77eb01cbf6cffb81aa163e254eb7abc84b5..dff0c9d2b4351664fdf115cbab17299756d78e13 100644
--- a/core/lib/Drupal/Core/Path/AliasWhitelist.php
+++ b/core/lib/Drupal/Core/Path/AliasWhitelist.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Cache\CacheCollector;
-use Drupal\Core\Database\Connection;
 use Drupal\Core\State\StateInterface;
 use Drupal\Core\Lock\LockBackendInterface;
 
diff --git a/core/lib/Drupal/Core/Plugin/CachedDiscoveryClearer.php b/core/lib/Drupal/Core/Plugin/CachedDiscoveryClearer.php
index 2001eea00b0386961476953ebfb61cea8a4df484..7275a0e81b455ec693347d3087dcb79b9223f035 100644
--- a/core/lib/Drupal/Core/Plugin/CachedDiscoveryClearer.php
+++ b/core/lib/Drupal/Core/Plugin/CachedDiscoveryClearer.php
@@ -8,8 +8,6 @@
 namespace Drupal\Core\Plugin;
 
 use Drupal\Component\Plugin\Discovery\CachedDiscoveryInterface;
-use Drupal\Component\Plugin\Exception\PluginException;
-use Drupal\Component\Plugin\PluginManagerInterface;
 
 /**
  * Defines a class which is capable of clearing the cache on plugin managers.
diff --git a/core/lib/Drupal/Core/Render/Element/Link.php b/core/lib/Drupal/Core/Render/Element/Link.php
index baa279e85493b4967eb30f4c4af04e59814f148f..8f908d2ee7e47f786a93ce982ca5c3f51fe2a6aa 100644
--- a/core/lib/Drupal/Core/Render/Element/Link.php
+++ b/core/lib/Drupal/Core/Render/Element/Link.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\Html as HtmlUtility;
-use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Url as CoreUrl;
 
diff --git a/core/lib/Drupal/Core/Render/HtmlResponseAttachmentsProcessor.php b/core/lib/Drupal/Core/Render/HtmlResponseAttachmentsProcessor.php
index b9cbc812e052c6b95461d2207b8f447229536f58..e0160d1b46a9063cb18e16832ea230ccf2edd7e6 100644
--- a/core/lib/Drupal/Core/Render/HtmlResponseAttachmentsProcessor.php
+++ b/core/lib/Drupal/Core/Render/HtmlResponseAttachmentsProcessor.php
@@ -12,9 +12,7 @@
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Form\EnforcedResponseException;
 use Drupal\Core\Extension\ModuleHandlerInterface;
-use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\SafeMarkup;
 use Symfony\Component\HttpFoundation\RequestStack;
 
 /**
diff --git a/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php b/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
index 4a4ab59bc8f2edd47cc323c4564f9dd5e1d16d25..767087627a6a95afb2159ee1ce55e45d0804e928 100644
--- a/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
+++ b/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Display\PageVariantInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Display\ContextAwareVariantInterface;
-use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\HtmlResponse;
 use Drupal\Core\Render\PageDisplayVariantSelectionEvent;
 use Drupal\Core\Render\RenderCacheInterface;
diff --git a/core/lib/Drupal/Core/Render/MainContent/ModalRenderer.php b/core/lib/Drupal/Core/Render/MainContent/ModalRenderer.php
index 945a76c6778de8d1d327cefed63e11ab849e6e07..8f2ef17d16a7ae6183b66b5c3b6d96dee58d7330 100644
--- a/core/lib/Drupal/Core/Render/MainContent/ModalRenderer.php
+++ b/core/lib/Drupal/Core/Render/MainContent/ModalRenderer.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Ajax\OpenModalDialogCommand;
-use Drupal\Core\Render\MainContent\DialogRenderer;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Symfony\Component\HttpFoundation\Request;
 
diff --git a/core/lib/Drupal/Core/RouteProcessor/RouteProcessorCurrent.php b/core/lib/Drupal/Core/RouteProcessor/RouteProcessorCurrent.php
index 0dbfcaa771e570b6f52257bd446764399554fb82..11299afc9eaff7f2aad132b604b9eb029f3ad016 100644
--- a/core/lib/Drupal/Core/RouteProcessor/RouteProcessorCurrent.php
+++ b/core/lib/Drupal/Core/RouteProcessor/RouteProcessorCurrent.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\RouteProcessor;
 
-use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Symfony\Component\Routing\Route;
diff --git a/core/lib/Drupal/Core/Routing/LinkGeneratorTrait.php b/core/lib/Drupal/Core/Routing/LinkGeneratorTrait.php
index 1dcb34370b8188ddca0903a871536ed69799ead3..dc2c9de0757deec8d3c7c1a06f84b95b013f3cc6 100644
--- a/core/lib/Drupal/Core/Routing/LinkGeneratorTrait.php
+++ b/core/lib/Drupal/Core/Routing/LinkGeneratorTrait.php
@@ -10,7 +10,6 @@
 
 use Drupal\Core\Url;
 use Drupal\Core\Utility\LinkGeneratorInterface;
-use Drupal\Core\Routing\UrlGeneratorInterface;
 
 /**
  * Wrapper methods for the Link Generator.
diff --git a/core/lib/Drupal/Core/Routing/RouteProvider.php b/core/lib/Drupal/Core/Routing/RouteProvider.php
index 58b8320b40cf7b04053f30b996c066089f34a96f..937cff71f32226580693b34e9f2e060b1ccfadfd 100644
--- a/core/lib/Drupal/Core/Routing/RouteProvider.php
+++ b/core/lib/Drupal/Core/Routing/RouteProvider.php
@@ -19,8 +19,6 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Routing\Exception\RouteNotFoundException;
 use Symfony\Component\Routing\RouteCollection;
-use Symfony\Component\Routing\Exception\ResourceNotFoundException;
-
 use \Drupal\Core\Database\Connection;
 
 /**
diff --git a/core/lib/Drupal/Core/Routing/RouteProviderInterface.php b/core/lib/Drupal/Core/Routing/RouteProviderInterface.php
index 8c8e3561d4fd49556da0e935f3d1e37bdf431296..03dcb04013697dec669d1591b2a0adf67846f194 100644
--- a/core/lib/Drupal/Core/Routing/RouteProviderInterface.php
+++ b/core/lib/Drupal/Core/Routing/RouteProviderInterface.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Routing;
 
 use Symfony\Cmf\Component\Routing\RouteProviderInterface as RouteProviderBaseInterface;
-use Symfony\Component\Routing\RouteCollection;
 
 /**
  * Extends the router provider interface
diff --git a/core/lib/Drupal/Core/Routing/RouteSubscriberBase.php b/core/lib/Drupal/Core/Routing/RouteSubscriberBase.php
index 757c8c118dd7b658f957f6222c5ac813568091b2..f26a2e80c208144d8ed3b273da9fbc22ddfcddc0 100644
--- a/core/lib/Drupal/Core/Routing/RouteSubscriberBase.php
+++ b/core/lib/Drupal/Core/Routing/RouteSubscriberBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Routing;
 
-use Drupal\Core\Routing\RoutingEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Routing\RouteCollection;
 
diff --git a/core/lib/Drupal/Core/Routing/UrlGenerator.php b/core/lib/Drupal/Core/Routing/UrlGenerator.php
index cf6607a3530ed91c3b7c9e8d14d84a549ebd1e18..f3d1275b2d087d8d6cfcd3435c546f08faf64ef4 100644
--- a/core/lib/Drupal/Core/Routing/UrlGenerator.php
+++ b/core/lib/Drupal/Core/Routing/UrlGenerator.php
@@ -14,7 +14,6 @@
 use Symfony\Component\Routing\Route as SymfonyRoute;
 use Symfony\Component\Routing\Exception\RouteNotFoundException;
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\PathProcessor\OutboundPathProcessorInterface;
 use Drupal\Core\RouteProcessor\OutboundRouteProcessorInterface;
 use Symfony\Component\Routing\Exception\InvalidParameterException;
diff --git a/core/lib/Drupal/Core/Session/PermissionsHashGenerator.php b/core/lib/Drupal/Core/Session/PermissionsHashGenerator.php
index f9da69dd9b495072ffd507785db17bce620766bf..aaf4468f398e2bfad99362bb817a4d1a78ec69bc 100644
--- a/core/lib/Drupal/Core/Session/PermissionsHashGenerator.php
+++ b/core/lib/Drupal/Core/Session/PermissionsHashGenerator.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Site\Settings;
-use Drupal\user\Entity\Role;
 
 /**
  * Generates and caches the permissions hash for a user.
diff --git a/core/lib/Drupal/Core/StringTranslation/TranslationManager.php b/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
index 7ccf5a39a1e5185e696a57b3e3e4a82113340a13..9d3966b02c1b4f6720e0e3d5118a028e705932e8 100644
--- a/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
+++ b/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\StringTranslation;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Language\LanguageDefault;
 use Drupal\Core\StringTranslation\Translator\TranslatorInterface;
 
diff --git a/core/lib/Drupal/Core/Template/TwigEnvironment.php b/core/lib/Drupal/Core/Template/TwigEnvironment.php
index 8d3feaae011b07c9daafbe77df323ac2a6d68e09..eb4f8e54e62e9d5253551daf248626ceaa1b089f 100644
--- a/core/lib/Drupal/Core/Template/TwigEnvironment.php
+++ b/core/lib/Drupal/Core/Template/TwigEnvironment.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\Template;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Render\Markup;
 
diff --git a/core/lib/Drupal/Core/Template/TwigNodeTrans.php b/core/lib/Drupal/Core/Template/TwigNodeTrans.php
index 757b94b4cc2a7cc2a1357c2a46e7911274b32b95..6bd4b8a9bab541669cbc2fd16978a726de5f6637 100644
--- a/core/lib/Drupal/Core/Template/TwigNodeTrans.php
+++ b/core/lib/Drupal/Core/Template/TwigNodeTrans.php
@@ -14,9 +14,6 @@
 
 namespace Drupal\Core\Template;
 
-use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Site\Settings;
-
 /**
  * A class that defines the Twig 'trans' tag for Drupal.
  */
diff --git a/core/lib/Drupal/Core/Test/TestRunnerKernel.php b/core/lib/Drupal/Core/Test/TestRunnerKernel.php
index f19afb3bf924cf98f37fd3e03952e9244af495b0..9928797021d1f08cc2487d11e79b3663731ac3a0 100644
--- a/core/lib/Drupal/Core/Test/TestRunnerKernel.php
+++ b/core/lib/Drupal/Core/Test/TestRunnerKernel.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\DrupalKernel;
 use Drupal\Core\Extension\Extension;
-use Drupal\Core\Installer\InstallerServiceProvider;
 use Composer\Autoload\ClassLoader;
 use Drupal\Core\Site\Settings;
 use Symfony\Component\HttpFoundation\Request;
diff --git a/core/lib/Drupal/Core/TypedData/Plugin/DataType/BinaryData.php b/core/lib/Drupal/Core/TypedData/Plugin/DataType/BinaryData.php
index a18c7d5110a1d7cf8b7fc6f3203465e2aaaa0c0a..7cc76cbefddd928df250e160f640160499cc39c5 100644
--- a/core/lib/Drupal/Core/TypedData/Plugin/DataType/BinaryData.php
+++ b/core/lib/Drupal/Core/TypedData/Plugin/DataType/BinaryData.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\TypedData\PrimitiveBase;
 use Drupal\Core\TypedData\Type\BinaryInterface;
-use Drupal\Core\TypedData\TypedData;
 
 /**
  * The binary data type.
diff --git a/core/lib/Drupal/Core/TypedData/Plugin/DataType/Uri.php b/core/lib/Drupal/Core/TypedData/Plugin/DataType/Uri.php
index ac3d48d02ff7286b4ffb6cc8480a21bb43e94d29..3fa1688500e835153ee2d95448a5f930721a20de 100644
--- a/core/lib/Drupal/Core/TypedData/Plugin/DataType/Uri.php
+++ b/core/lib/Drupal/Core/TypedData/Plugin/DataType/Uri.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\Core\TypedData\Plugin\DataType;
 
-use Drupal\Core\TypedData\PrimitiveBase;
 use Drupal\Core\TypedData\Type\UriInterface;
-use Drupal\Core\TypedData\TypedData;
 
 /**
  * The URI data type.
diff --git a/core/lib/Drupal/Core/Utility/LinkGenerator.php b/core/lib/Drupal/Core/Utility/LinkGenerator.php
index 8b453f7eabbaca0c7005c960bc274c78dbf3f34d..70af473168c46a0ebc1bb09ea99164979f426d06 100644
--- a/core/lib/Drupal/Core/Utility/LinkGenerator.php
+++ b/core/lib/Drupal/Core/Utility/LinkGenerator.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\GeneratedLink;
 use Drupal\Core\Link;
-use Drupal\Core\Path\AliasManagerInterface;
 use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Routing\UrlGeneratorInterface;
 use Drupal\Core\Template\Attribute;
diff --git a/core/lib/Drupal/Core/Utility/Token.php b/core/lib/Drupal/Core/Utility/Token.php
index 688731a1a72ca14c1081d4fad4471fed51d34d66..8d98232e6546464ea36e7093e50d54bc3fd2bf01 100644
--- a/core/lib/Drupal/Core/Utility/Token.php
+++ b/core/lib/Drupal/Core/Utility/Token.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Render\HtmlEscapedText;
 use Drupal\Component\Render\MarkupInterface;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
diff --git a/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php b/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
index 81795635a284f9e2ef4bdf63b4ef4d2b9d317549..dc1c237aa45e4d0475921fe30c291839c8790386 100644
--- a/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
+++ b/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Utility;
 
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\GeneratedUrl;
 use Drupal\Core\PathProcessor\OutboundPathProcessorInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
diff --git a/core/modules/action/action.views_execution.inc b/core/modules/action/action.views_execution.inc
index db7fef5e1bc7e1d3620e4ee08756fdff3d3450d1..5b4f71f8116bb020c78057266f1744ad43dbe77a 100644
--- a/core/modules/action/action.views_execution.inc
+++ b/core/modules/action/action.views_execution.inc
@@ -5,8 +5,6 @@
  * Provides views runtime hooks for action.module.
  */
 
-use Drupal\Component\Utility\SafeMarkup;
-
 /**
  * Implements hook_views_form_substitutions().
  */
diff --git a/core/modules/aggregator/aggregator.install b/core/modules/aggregator/aggregator.install
index 88812c4752fc5bf2238c4cdda5bf1c46b7c52bdc..ad5f92f1fb94227f76ab4b39c870ac4a70b2dcf5 100644
--- a/core/modules/aggregator/aggregator.install
+++ b/core/modules/aggregator/aggregator.install
@@ -4,7 +4,6 @@
  * @file
  * Install, update and uninstall functions for the aggregator module.
  */
-use Drupal\Core\Language\Language;
 
 /**
  * Implements hook_requirements().
diff --git a/core/modules/aggregator/src/Controller/AggregatorController.php b/core/modules/aggregator/src/Controller/AggregatorController.php
index 70c66976d2c32749082602e15e58cb97b67db173..c6568383c9844a0f415c164d6cf488503ebbd905 100644
--- a/core/modules/aggregator/src/Controller/AggregatorController.php
+++ b/core/modules/aggregator/src/Controller/AggregatorController.php
@@ -12,8 +12,6 @@
 use Drupal\Core\Datetime\DateFormatterInterface;
 use Drupal\aggregator\FeedInterface;
 use Drupal\Core\Url;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/aggregator/src/Entity/Feed.php b/core/modules/aggregator/src/Entity/Feed.php
index a78d853579e2b4d5e562c2fb3edde78c47508e0e..68494e1a771b289706a3217fed4c49a32b38f89b 100644
--- a/core/modules/aggregator/src/Entity/Feed.php
+++ b/core/modules/aggregator/src/Entity/Feed.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Entity\ContentEntityBase;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
-use Symfony\Component\DependencyInjection\Container;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\aggregator\FeedInterface;
 
diff --git a/core/modules/aggregator/src/FeedStorageInterface.php b/core/modules/aggregator/src/FeedStorageInterface.php
index 1075f75f338af002081e364778a466598c8472ba..48b2732d271bb0e921da4e80b0a17231f064fa7f 100644
--- a/core/modules/aggregator/src/FeedStorageInterface.php
+++ b/core/modules/aggregator/src/FeedStorageInterface.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\aggregator;
 
-use Drupal\aggregator\FeedInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
 
 /**
diff --git a/core/modules/aggregator/src/ItemStorageInterface.php b/core/modules/aggregator/src/ItemStorageInterface.php
index f5012bd64404792d442dbc230e3a4c1c60ccb250..f6526a4f6dbbeb25c868e0ee26dedcaeca0d16bd 100644
--- a/core/modules/aggregator/src/ItemStorageInterface.php
+++ b/core/modules/aggregator/src/ItemStorageInterface.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\aggregator;
 
-use Drupal\aggregator\Entity\Item;
 use Drupal\Core\Entity\EntityStorageInterface;
 
 /**
diff --git a/core/modules/aggregator/src/ItemStorageSchema.php b/core/modules/aggregator/src/ItemStorageSchema.php
index 9688f670bd797cab3bafd9e033016d9649d1c6be..b174ee23ddf6b0fc6ae4c2599d2fa1e71a41226a 100644
--- a/core/modules/aggregator/src/ItemStorageSchema.php
+++ b/core/modules/aggregator/src/ItemStorageSchema.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\aggregator;
 
-use Drupal\Core\Entity\ContentEntityTypeInterface;
 use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 
diff --git a/core/modules/aggregator/src/Plugin/Field/FieldFormatter/AggregatorXSSFormatter.php b/core/modules/aggregator/src/Plugin/Field/FieldFormatter/AggregatorXSSFormatter.php
index 0edb460a5bf9015775e6ca30629e8eb270cadcaa..2b6525a54289e412f0e239a7995e1552b3d00bbf 100644
--- a/core/modules/aggregator/src/Plugin/Field/FieldFormatter/AggregatorXSSFormatter.php
+++ b/core/modules/aggregator/src/Plugin/Field/FieldFormatter/AggregatorXSSFormatter.php
@@ -7,10 +7,8 @@
 
 namespace Drupal\aggregator\Plugin\Field\FieldFormatter;
 
-use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\FormatterBase;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Plugin implementation of the 'aggregator_xss' formatter.
diff --git a/core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php b/core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php
index 21a67dda4ad57f3c625903d8f192b3894949b2d2..95c6324b95c6b2abe9a8689a344d23f212351e2c 100644
--- a/core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php
+++ b/core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php
@@ -12,7 +12,6 @@
 use Drupal\aggregator\Plugin\ProcessorInterface;
 use Drupal\aggregator\FeedInterface;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Database\Database;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Datetime\DateFormatterInterface;
 use Drupal\Core\Entity\Query\QueryInterface;
diff --git a/core/modules/aggregator/src/Tests/AddFeedTest.php b/core/modules/aggregator/src/Tests/AddFeedTest.php
index cf95815cc85edc14127fce4b83da08bcd04b728f..94f315b6e12e1b59813bc34d4d77be8a75ad71db 100644
--- a/core/modules/aggregator/src/Tests/AddFeedTest.php
+++ b/core/modules/aggregator/src/Tests/AddFeedTest.php
@@ -6,7 +6,6 @@
  */
 
 namespace Drupal\aggregator\Tests;
-use Drupal\Component\Utility\Html;
 
 /**
  * Add feed test.
diff --git a/core/modules/aggregator/src/Tests/FeedParserTest.php b/core/modules/aggregator/src/Tests/FeedParserTest.php
index 6da2ec8eb3d2926e2dc36366f4e8145ab6b7bf83..f507302a34c6bd9633f99dfe469dfe85dd6e6f07 100644
--- a/core/modules/aggregator/src/Tests/FeedParserTest.php
+++ b/core/modules/aggregator/src/Tests/FeedParserTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\aggregator\Tests;
 
 use Drupal\Core\Url;
-use Zend\Feed\Reader\Reader;
 
 /**
  * Tests the built-in feed parser with valid feed samples.
diff --git a/core/modules/block/src/Controller/BlockAddController.php b/core/modules/block/src/Controller/BlockAddController.php
index dacfde3522830c13aa4624860f5e86e9b9618d58..a9abfd6f1c143859e9171353bcd1134869154001 100644
--- a/core/modules/block/src/Controller/BlockAddController.php
+++ b/core/modules/block/src/Controller/BlockAddController.php
@@ -8,7 +8,6 @@
 namespace Drupal\block\Controller;
 
 use Drupal\Core\Controller\ControllerBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Controller for building the block instance add form.
diff --git a/core/modules/block/src/Controller/BlockController.php b/core/modules/block/src/Controller/BlockController.php
index 32a6626683032ce1077ef23b06756422af8e2708..2779a9b57ed695a474f09624514ebb80131c1714 100644
--- a/core/modules/block/src/Controller/BlockController.php
+++ b/core/modules/block/src/Controller/BlockController.php
@@ -9,10 +9,8 @@
 
 use Drupal\Component\Utility\Html;
 use Drupal\Core\Controller\ControllerBase;
-use Drupal\Core\Extension\ThemeHandler;
 use Drupal\Core\Extension\ThemeHandlerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Controller routines for admin block routes.
diff --git a/core/modules/block/src/EventSubscriber/BlockPageDisplayVariantSubscriber.php b/core/modules/block/src/EventSubscriber/BlockPageDisplayVariantSubscriber.php
index f66b9688d9f7d4688b3ac752e5846961246bd530..a686188a4ef31eedc81f4e223deccbbfa66d4a32 100644
--- a/core/modules/block/src/EventSubscriber/BlockPageDisplayVariantSubscriber.php
+++ b/core/modules/block/src/EventSubscriber/BlockPageDisplayVariantSubscriber.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\block\EventSubscriber;
 
-use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\Core\Render\PageDisplayVariantSelectionEvent;
 use Drupal\Core\Render\RenderEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
diff --git a/core/modules/block/src/Tests/BlockViewBuilderTest.php b/core/modules/block/src/Tests/BlockViewBuilderTest.php
index bd35f1d10969624ee3a22cbfad0e06912791b9d9..331db82a956182cfd4b4496d78b2cc54f015214d 100644
--- a/core/modules/block/src/Tests/BlockViewBuilderTest.php
+++ b/core/modules/block/src/Tests/BlockViewBuilderTest.php
@@ -11,8 +11,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\simpletest\KernelTestBase;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\RequestStack;
 use Drupal\block\Entity\Block;
 
 /**
diff --git a/core/modules/block/tests/modules/block_test/src/Plugin/Block/TestCacheBlock.php b/core/modules/block/tests/modules/block_test/src/Plugin/Block/TestCacheBlock.php
index 157acb409b891e07d53ce0605abbba9d5a3b2f1c..58da8a762f72211bcb146857a1f7a5a323d117a8 100644
--- a/core/modules/block/tests/modules/block_test/src/Plugin/Block/TestCacheBlock.php
+++ b/core/modules/block/tests/modules/block_test/src/Plugin/Block/TestCacheBlock.php
@@ -8,7 +8,6 @@
 namespace Drupal\block_test\Plugin\Block;
 
 use Drupal\Core\Block\BlockBase;
-use Drupal\Core\Cache\Cache;
 
 /**
  * Provides a block to test caching.
diff --git a/core/modules/block_content/block_content.pages.inc b/core/modules/block_content/block_content.pages.inc
index 9e019cd3e64c8fc0ccdf56096a55421b70fe9dbd..86296900df659f993286654ba8ad5029c5492e94 100644
--- a/core/modules/block_content/block_content.pages.inc
+++ b/core/modules/block_content/block_content.pages.inc
@@ -6,9 +6,6 @@
  */
 
 use Drupal\Core\Url;
-use Drupal\block_content\Entity\BlockContentType;
-use Drupal\block_content\Entity\BlockContent;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
  * Prepares variables for a custom block type creation list templates.
diff --git a/core/modules/block_content/src/Controller/BlockContentController.php b/core/modules/block_content/src/Controller/BlockContentController.php
index 4d653624d0e53618a7d826462dad33ed8f47a5c6..e43fb83e08204d78c1d3bc149b63009337692a33 100644
--- a/core/modules/block_content/src/Controller/BlockContentController.php
+++ b/core/modules/block_content/src/Controller/BlockContentController.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\block_content\Controller;
 
-use Drupal\Component\Plugin\PluginManagerInterface;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\block_content\BlockContentTypeInterface;
diff --git a/core/modules/block_content/src/Entity/BlockContentType.php b/core/modules/block_content/src/Entity/BlockContentType.php
index 84948144bbef5009279f020e8a8b2c4d78bbc5cd..f020bbd41b4b74449730f4987ab84e2b770d1da2 100644
--- a/core/modules/block_content/src/Entity/BlockContentType.php
+++ b/core/modules/block_content/src/Entity/BlockContentType.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\block_content\Entity;
 
-use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
-use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\block_content\BlockContentTypeInterface;
 
 /**
diff --git a/core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php b/core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php
index a9ec5d96b23f77e5f9325a814e7a12f3ca1732a8..3c3b75a6e8fa774b1f4d906bb8e77175b788da4b 100644
--- a/core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php
+++ b/core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Entity\EntityDeleteForm;
 use Drupal\Core\Entity\Query\QueryFactory;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/block_content/src/Plugin/Block/BlockContentBlock.php b/core/modules/block_content/src/Plugin/Block/BlockContentBlock.php
index 266b2950297e28cc1670588ddd73288f0b81f6bb..d271ea1d52d183e8d90f6df53bc090a498ca44a3 100644
--- a/core/modules/block_content/src/Plugin/Block/BlockContentBlock.php
+++ b/core/modules/block_content/src/Plugin/Block/BlockContentBlock.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Routing\UrlGeneratorInterface;
 use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/modules/block_content/src/Tests/BlockContentCacheTagsTest.php b/core/modules/block_content/src/Tests/BlockContentCacheTagsTest.php
index 1aecb85236425a99cd6525c44722573db46d5894..8f543c3733c7d036f164eb8d6e2c45b3d5207986 100644
--- a/core/modules/block_content/src/Tests/BlockContentCacheTagsTest.php
+++ b/core/modules/block_content/src/Tests/BlockContentCacheTagsTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Language\LanguageInterface;
-use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\system\Tests\Entity\EntityCacheTagsTestBase;
 use Symfony\Component\HttpFoundation\Request;
 
diff --git a/core/modules/block_content/src/Tests/BlockContentTestBase.php b/core/modules/block_content/src/Tests/BlockContentTestBase.php
index 6a01fa689f9d47b124e2a91f3daf22703fa60ed1..494bd8584f3b97d3cf331a2b55874674d78d4938 100644
--- a/core/modules/block_content/src/Tests/BlockContentTestBase.php
+++ b/core/modules/block_content/src/Tests/BlockContentTestBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\block_content\Tests;
 
-use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/block_content/src/Tests/BlockContentTypeTest.php b/core/modules/block_content/src/Tests/BlockContentTypeTest.php
index 2e29d108af831e758fa0be26d0c37709eaff3721..e669a72e3268f93df693b1bd2d709af198e2f6e8 100644
--- a/core/modules/block_content/src/Tests/BlockContentTypeTest.php
+++ b/core/modules/block_content/src/Tests/BlockContentTypeTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\block_content\Entity\BlockContentType;
 use Drupal\Component\Utility\Html;
-use Drupal\Core\Url;
 
 /**
  * Ensures that custom block type functions work correctly.
diff --git a/core/modules/book/book.module b/core/modules/book/book.module
index 2bba2777f8a479eefcb84f5494d811640cd1315b..abf11eb2aa5250df0499012ce9a34e66a21eb95a 100644
--- a/core/modules/book/book.module
+++ b/core/modules/book/book.module
@@ -6,7 +6,6 @@
  */
 
 use Drupal\book\BookManager;
-use Drupal\book\BookManagerInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
diff --git a/core/modules/book/src/BookExport.php b/core/modules/book/src/BookExport.php
index dbb62e9fc52404026ed9a5e67e9a15af1154c6a6..4ae2ea1344394c4cfcc9f0a2c1ceb8523be84bea 100644
--- a/core/modules/book/src/BookExport.php
+++ b/core/modules/book/src/BookExport.php
@@ -8,8 +8,6 @@
 namespace Drupal\book;
 
 use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Render\RendererInterface;
-use Drupal\node\Entity\Node;
 use Drupal\node\NodeInterface;
 
 /**
diff --git a/core/modules/book/src/Controller/BookController.php b/core/modules/book/src/Controller/BookController.php
index 53c64ad3caafde502820b0bdbb8db45e1439fe4a..3206e43357bafb4156904ce5cf875aff5d55aed4 100644
--- a/core/modules/book/src/Controller/BookController.php
+++ b/core/modules/book/src/Controller/BookController.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Url;
-use Drupal\node\Entity\Node;
 use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/modules/book/src/Form/BookRemoveForm.php b/core/modules/book/src/Form/BookRemoveForm.php
index 7623f5fd150c97743fae755fa2a0204403af973e..80c7f8995c63f93bc2485fb0916c034e22b5dfe9 100644
--- a/core/modules/book/src/Form/BookRemoveForm.php
+++ b/core/modules/book/src/Form/BookRemoveForm.php
@@ -10,7 +10,6 @@
 use Drupal\book\BookManagerInterface;
 use Drupal\Core\Form\ConfirmFormBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Url;
 use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/ckeditor/src/Plugin/CKEditorPlugin/StylesCombo.php b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/StylesCombo.php
index d3eb49f1b472eb145f724bc4b5c7f204cf41e7c7..47b39aaa134f4b9e72f14a6e221eb2043d5df2c0 100644
--- a/core/modules/ckeditor/src/Plugin/CKEditorPlugin/StylesCombo.php
+++ b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/StylesCombo.php
@@ -9,7 +9,6 @@
 
 use Drupal\ckeditor\CKEditorPluginBase;
 use Drupal\ckeditor\CKEditorPluginConfigurableInterface;
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\editor\Entity\Editor;
 
diff --git a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
index 914c1b4530c69f010f2acc501ecdd5f023023c6f..abf409b6497c53c06e1f198243cbf7ba86df6f09 100644
--- a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
+++ b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\ckeditor\Plugin\Editor;
 
-use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\ckeditor\CKEditorPluginManager;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php b/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php
index 96cf56f546b2831f9e7d44e04a113bdf7158cd7d..aec8dbb89f7e0eecbb1f962f2a41f41cea01eea6 100644
--- a/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php
+++ b/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\ckeditor\Tests;
 
 use Drupal\simpletest\KernelTestBase;
-use Drupal\ckeditor\CKEditorPluginManager;
 
 /**
  * Tests different ways of enabling CKEditor plugins.
diff --git a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaButton.php b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaButton.php
index 855f8174518ffb653935b72c769fcf96bb42245b..6fa198177487009591a241f5b18c6c031faa49bf 100644
--- a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaButton.php
+++ b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaButton.php
@@ -8,7 +8,6 @@
 namespace Drupal\ckeditor_test\Plugin\CKEditorPlugin;
 
 use Drupal\ckeditor\CKEditorPluginButtonsInterface;
-use Drupal\Component\Plugin\PluginBase;
 
 /**
  * Defines a "LlamaButton" plugin, with a toolbar builder-enabled "llama" feature.
diff --git a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextual.php b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextual.php
index 16bb68accf301522a1db0e41d7e929cb6e5aa822..8a52ff49d84fdd1590e8277cdecb5fbeeea638f3 100644
--- a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextual.php
+++ b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextual.php
@@ -8,7 +8,6 @@
 namespace Drupal\ckeditor_test\Plugin\CKEditorPlugin;
 
 use Drupal\ckeditor\CKEditorPluginContextualInterface;
-use Drupal\Component\Plugin\PluginBase;
 use Drupal\editor\Entity\Editor;
 
 /**
diff --git a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextualAndButton.php b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextualAndButton.php
index 4c43cb754c966d8be80737bf552ade44366530a9..358742bd3917df556255e8daf8386ebe6a91a1fd 100644
--- a/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextualAndButton.php
+++ b/core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextualAndButton.php
@@ -10,7 +10,6 @@
 use Drupal\ckeditor\CKEditorPluginButtonsInterface;
 use Drupal\ckeditor\CKEditorPluginContextualInterface;
 use Drupal\ckeditor\CKEditorPluginConfigurableInterface;
-use Drupal\Component\Plugin\PluginBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\editor\Entity\Editor;
 
diff --git a/core/modules/comment/comment.api.php b/core/modules/comment/comment.api.php
index 563cc5d4b8bde4f29bb6d9c73cd4144b3fa500cd..4b79b3686bd8cb86b43e88dc05a8eabb52dafb89 100644
--- a/core/modules/comment/comment.api.php
+++ b/core/modules/comment/comment.api.php
@@ -1,6 +1,5 @@
 <?php
 
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\comment\CommentInterface;
 use Drupal\Core\Url;
 
diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index 4fcb7de257426c5a8815691d27204ce4ae69b63e..dbeccb655f2d89992b699c48417b7ebc22f4c0bf 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -11,24 +11,17 @@
  */
 
 use Drupal\comment\CommentInterface;
-use Drupal\comment\Entity\Comment;
-use Drupal\comment\CommentManagerInterface;
 use Drupal\comment\Entity\CommentType;
 use Drupal\Core\Entity\FieldableEntityInterface;
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
-use Drupal\Core\Entity\Entity\EntityViewDisplay;
 use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
-use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Url;
-use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\field\FieldConfigInterface;
 use Drupal\field\FieldStorageConfigInterface;
-use Drupal\file\FileInterface;
-use Drupal\user\EntityOwnerInterface;
 use Drupal\node\NodeInterface;
 use Drupal\user\RoleInterface;
 
diff --git a/core/modules/comment/src/CommentForm.php b/core/modules/comment/src/CommentForm.php
index 15d1ece46f3acec599cc7f4eed5c0e653d32e388..f89dfa2753bc0abbff373d4d589546cc04cf3eee 100644
--- a/core/modules/comment/src/CommentForm.php
+++ b/core/modules/comment/src/CommentForm.php
@@ -10,13 +10,11 @@
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Datetime\DrupalDateTime;
 use Drupal\Core\Entity\ContentEntityForm;
 use Drupal\Core\Entity\EntityConstraintViolationListInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/modules/comment/src/CommentManager.php b/core/modules/comment/src/CommentManager.php
index 729f3dc4ea2e06198f9e32af0a5c248919c11ada..49613242433e1783424ff0a742e17db6c0176e4a 100644
--- a/core/modules/comment/src/CommentManager.php
+++ b/core/modules/comment/src/CommentManager.php
@@ -8,7 +8,6 @@
 namespace Drupal\comment;
 
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
-use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
diff --git a/core/modules/comment/src/CommentManagerInterface.php b/core/modules/comment/src/CommentManagerInterface.php
index 2c9a53163b11be4332ce0b0c59ffd71c4b3c23e9..de8492c8bd96d7adaf0b8f7ecb66ed0f5c2b646a 100644
--- a/core/modules/comment/src/CommentManagerInterface.php
+++ b/core/modules/comment/src/CommentManagerInterface.php
@@ -8,8 +8,6 @@
 namespace Drupal\comment;
 
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Session\AccountInterface;
-use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 
 /**
  * Comment manager contains common functions to manage comment fields.
diff --git a/core/modules/comment/src/CommentTypeForm.php b/core/modules/comment/src/CommentTypeForm.php
index 3c7ef6af6f2f3689eb6e152dd20cd84a4a522f37..12d65fb157b87647ab366120d37e7992173b1267 100644
--- a/core/modules/comment/src/CommentTypeForm.php
+++ b/core/modules/comment/src/CommentTypeForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\comment;
 
-use Drupal\Core\Entity\ContentEntityTypeInterface;
 use Drupal\Core\Entity\EntityForm;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
diff --git a/core/modules/comment/src/CommentViewBuilder.php b/core/modules/comment/src/CommentViewBuilder.php
index f17649e4d21ae658bf7fce86260a20999be16571..22914d310abf20991b05b693b22bd91dadfcf0a9 100644
--- a/core/modules/comment/src/CommentViewBuilder.php
+++ b/core/modules/comment/src/CommentViewBuilder.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\comment;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
diff --git a/core/modules/comment/src/Entity/CommentType.php b/core/modules/comment/src/Entity/CommentType.php
index 94fd193bb4501462b1b9768e12f22a71f24be88c..3e6ba0a8ac484d88e94adb1af254c2368ad684c7 100644
--- a/core/modules/comment/src/Entity/CommentType.php
+++ b/core/modules/comment/src/Entity/CommentType.php
@@ -8,7 +8,6 @@
 namespace Drupal\comment\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
-use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\comment\CommentTypeInterface;
 
 /**
diff --git a/core/modules/comment/src/Form/CommentTypeDeleteForm.php b/core/modules/comment/src/Form/CommentTypeDeleteForm.php
index deac0acfb7d8a293b85b663ad4c38a2190e929b4..f37e47b2aedca3869251f0125022d52de08763b6 100644
--- a/core/modules/comment/src/Form/CommentTypeDeleteForm.php
+++ b/core/modules/comment/src/Form/CommentTypeDeleteForm.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Entity\EntityManager;
 use Drupal\Core\Entity\Query\QueryFactory;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Url;
 use Drupal\field\Entity\FieldStorageConfig;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php b/core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
index ac641b6c88dce1bd7f4ea18e6ceb307cedf73fc1..64ff3015ff44efe43e042844c346fb4dd9688bf9 100644
--- a/core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
+++ b/core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
@@ -7,12 +7,8 @@
 
 namespace Drupal\comment\Plugin\Field\FieldFormatter;
 
-use Drupal\comment\CommentManagerInterface;
-use Drupal\comment\CommentStorageInterface;
-use Drupal\comment\Entity\Comment;
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Entity\EntityViewBuilderInterface;
 use Drupal\Core\Entity\EntityFormBuilderInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/comment/src/Plugin/views/wizard/Comment.php b/core/modules/comment/src/Plugin/views/wizard/Comment.php
index 366e2565e76aaa78aa4fceb5933ed953020f074d..6f9dd79903ad5f3a074673b090391d6a9bf14d72 100644
--- a/core/modules/comment/src/Plugin/views/wizard/Comment.php
+++ b/core/modules/comment/src/Plugin/views/wizard/Comment.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\comment\Plugin\views\wizard;
 
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\wizard\WizardPluginBase;
 
 /**
diff --git a/core/modules/comment/src/Tests/CommentDefaultFormatterCacheTagsTest.php b/core/modules/comment/src/Tests/CommentDefaultFormatterCacheTagsTest.php
index 2c9a86733957e86daa7f5e62260c30867423c46a..1164ba0446e838fd8cff7cde3d1e5169fd0121d0 100644
--- a/core/modules/comment/src/Tests/CommentDefaultFormatterCacheTagsTest.php
+++ b/core/modules/comment/src/Tests/CommentDefaultFormatterCacheTagsTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\comment\Tests;
 
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Session\UserSession;
 use Drupal\comment\CommentInterface;
 use Drupal\system\Tests\Entity\EntityUnitTestBase;
 use Symfony\Component\HttpFoundation\Request;
diff --git a/core/modules/comment/src/Tests/CommentTokenReplaceTest.php b/core/modules/comment/src/Tests/CommentTokenReplaceTest.php
index b7172e3541aa181ab37edd705680ccbddb1b95c6..60f1c28d13d261c73774debe27b65421bdba3b9b 100644
--- a/core/modules/comment/src/Tests/CommentTokenReplaceTest.php
+++ b/core/modules/comment/src/Tests/CommentTokenReplaceTest.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Component\Utility\Xss;
 use Drupal\comment\Entity\Comment;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\node\Entity\Node;
diff --git a/core/modules/comment/tests/modules/comment_empty_title_test/comment_empty_title_test.module b/core/modules/comment/tests/modules/comment_empty_title_test/comment_empty_title_test.module
index d9a050390705fb7582d7ddc649f9e6a1d957d3e0..1fdbd6d863ae321804c8d98ff28f940e1b0c84b9 100644
--- a/core/modules/comment/tests/modules/comment_empty_title_test/comment_empty_title_test.module
+++ b/core/modules/comment/tests/modules/comment_empty_title_test/comment_empty_title_test.module
@@ -6,8 +6,6 @@
  * markup in edge case scenarios where comments have empty titles.
  */
 
-use Drupal\comment\CommentInterface;
-
 /**
  * Implements hook_preprocess_comment().
  */
diff --git a/core/modules/comment/tests/src/Unit/Entity/CommentLockTest.php b/core/modules/comment/tests/src/Unit/Entity/CommentLockTest.php
index 3289e3cb25d3a089af8555e98ef1b3c21a8c259d..021e7b6603db77d22f64d4ba06c5ea12cef5a343 100644
--- a/core/modules/comment/tests/src/Unit/Entity/CommentLockTest.php
+++ b/core/modules/comment/tests/src/Unit/Entity/CommentLockTest.php
@@ -7,7 +7,6 @@
 namespace Drupal\Tests\comment\Unit\Entity;
 
 use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\Entity\EntityType;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
diff --git a/core/modules/config/src/ConfigSubscriber.php b/core/modules/config/src/ConfigSubscriber.php
index 9da0233f8cd2da72a5f7681cb6304027f9925dc6..ae71a1de5d9830eaf780de5ceaa16959ad9f9f64 100644
--- a/core/modules/config/src/ConfigSubscriber.php
+++ b/core/modules/config/src/ConfigSubscriber.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\ConfigEvents;
 use Drupal\Core\Config\ConfigImporterEvent;
-use Drupal\Core\Config\ConfigImporterException;
 use Drupal\Core\Config\ConfigImportValidateEventSubscriberBase;
 
 
diff --git a/core/modules/config/src/Form/ConfigSync.php b/core/modules/config/src/Form/ConfigSync.php
index 3c176977152e1ca4206164111747803edc174220..03de002dae4beb6950147974825a56ef22b3156f 100644
--- a/core/modules/config/src/Form/ConfigSync.php
+++ b/core/modules/config/src/Form/ConfigSync.php
@@ -7,11 +7,9 @@
 
 namespace Drupal\config\Form;
 
-use Drupal\Component\Uuid\UuidInterface;
 use Drupal\Core\Config\ConfigImporterException;
 use Drupal\Core\Config\ConfigImporter;
 use Drupal\Core\Config\TypedConfigManagerInterface;
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Extension\ModuleInstallerInterface;
 use Drupal\Core\Extension\ThemeHandlerInterface;
diff --git a/core/modules/config/src/Tests/ConfigCRUDTest.php b/core/modules/config/src/Tests/ConfigCRUDTest.php
index 70b8919750312eebf102bd8fc3e08148f9bcac12..6258ccc124d2ccec8adcbd342310d47e8abe19eb 100644
--- a/core/modules/config/src/Tests/ConfigCRUDTest.php
+++ b/core/modules/config/src/Tests/ConfigCRUDTest.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Config\ConfigValueException;
 use Drupal\Core\Config\InstallStorage;
 use Drupal\simpletest\KernelTestBase;
-use Drupal\Core\Config\FileStorage;
 use Drupal\Core\Config\DatabaseStorage;
 use Drupal\Core\Config\UnsupportedDataTypeConfigException;
 
diff --git a/core/modules/config/src/Tests/ConfigEntityStatusUITest.php b/core/modules/config/src/Tests/ConfigEntityStatusUITest.php
index 87ad9a1b2df021de52a7939dacf1efcb4c10dbca..b959acc43091060ae480ee721bc932318068df8c 100644
--- a/core/modules/config/src/Tests/ConfigEntityStatusUITest.php
+++ b/core/modules/config/src/Tests/ConfigEntityStatusUITest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\config\Tests;
 
-use Drupal\Core\Entity\EntityMalformedException;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/config/src/Tests/ConfigEntityUnitTest.php b/core/modules/config/src/Tests/ConfigEntityUnitTest.php
index b7249a3dbca718aa788ac32df81ba730f37a3a7a..dd6a58662ffb24b86848f403b1582600d2c95558 100644
--- a/core/modules/config/src/Tests/ConfigEntityUnitTest.php
+++ b/core/modules/config/src/Tests/ConfigEntityUnitTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\config\Tests;
 
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/config/src/Tests/ConfigImporterMissingContentTest.php b/core/modules/config/src/Tests/ConfigImporterMissingContentTest.php
index 7990da3db5501edd18beeec9908752410d4b09c1..cb5522db72cb47e5c459f2a97d94f1a6062678f7 100644
--- a/core/modules/config/src/Tests/ConfigImporterMissingContentTest.php
+++ b/core/modules/config/src/Tests/ConfigImporterMissingContentTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\config\Tests;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Config\ConfigImporter;
-use Drupal\Core\Config\ConfigImporterException;
 use Drupal\Core\Config\StorageComparer;
 use Drupal\simpletest\KernelTestBase;
 
diff --git a/core/modules/config/src/Tests/ConfigInstallTest.php b/core/modules/config/src/Tests/ConfigInstallTest.php
index 7358e65c6ab1f6bafc39aa8e9204db1418143d51..e5ac68dda82dac58354ebb3aa12e41c265aef24a 100644
--- a/core/modules/config/src/Tests/ConfigInstallTest.php
+++ b/core/modules/config/src/Tests/ConfigInstallTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\InstallStorage;
 use Drupal\Core\Config\PreExistingConfigException;
-use Drupal\Core\Config\StorageInterface;
 use Drupal\Core\Config\UnmetDependenciesException;
 use Drupal\simpletest\KernelTestBase;
 
diff --git a/core/modules/config/src/Tests/DefaultConfigTest.php b/core/modules/config/src/Tests/DefaultConfigTest.php
index 330cfb25e27bc09b585149a108e3b285183dd93d..2610c3df08dd4642b54f7a859660d397f22915a2 100644
--- a/core/modules/config/src/Tests/DefaultConfigTest.php
+++ b/core/modules/config/src/Tests/DefaultConfigTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\config_test\TestInstallStorage;
 use Drupal\Core\Config\InstallStorage;
-use Drupal\Core\Config\TypedConfigManager;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\simpletest\KernelTestBase;
 use Symfony\Component\DependencyInjection\Reference;
diff --git a/core/modules/config/src/Tests/SchemaConfigListenerTest.php b/core/modules/config/src/Tests/SchemaConfigListenerTest.php
index bac62453b468abd02d085984cb9abf4092498d65..58939b6b374aba19533d3d8c2a3c39301d74d3f2 100644
--- a/core/modules/config/src/Tests/SchemaConfigListenerTest.php
+++ b/core/modules/config/src/Tests/SchemaConfigListenerTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\config\Tests;
 
-use Drupal\Core\Config\Schema\SchemaCheckTrait;
 use Drupal\Core\Config\Schema\SchemaIncompleteException;
 use Drupal\simpletest\KernelTestBase;
 
diff --git a/core/modules/config/src/Tests/SchemaConfigListenerWebTest.php b/core/modules/config/src/Tests/SchemaConfigListenerWebTest.php
index 65ca4c34cfb6b8c6616a6c88ca893bc2584afab1..26bb9307b1d487ea373ace529b76c110adb9c75b 100644
--- a/core/modules/config/src/Tests/SchemaConfigListenerWebTest.php
+++ b/core/modules/config/src/Tests/SchemaConfigListenerWebTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\config\Tests;
 
-use Drupal\Core\Config\Schema\SchemaCheckTrait;
 use Drupal\Core\Config\Schema\SchemaIncompleteException;
-use Drupal\simpletest\KernelTestBase;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/config/src/Tests/Storage/CachedStorageTest.php b/core/modules/config/src/Tests/Storage/CachedStorageTest.php
index 4d8a8ac0ab0b000908bf7c5ab855476379658461..402d87abdfd893902505f84cff04ffa2d949cb55 100644
--- a/core/modules/config/src/Tests/Storage/CachedStorageTest.php
+++ b/core/modules/config/src/Tests/Storage/CachedStorageTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\FileStorage;
 use Drupal\Core\Config\CachedStorage;
-use Drupal\Core\Database\Database;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
 
diff --git a/core/modules/config/tests/config_test/config_test.module b/core/modules/config/tests/config_test/config_test.module
index 9510abab67a83d0547368fa742a67ee2a9a6f300..08aeac61e94362e58d397c963d24af8d0d42a0d7 100644
--- a/core/modules/config/tests/config_test/config_test.module
+++ b/core/modules/config/tests/config_test/config_test.module
@@ -6,7 +6,6 @@
  */
 
 use Drupal\config_test\Entity\ConfigTest;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 
 require_once dirname(__FILE__) . '/config_test.hooks.inc';
 
diff --git a/core/modules/config/tests/config_test/src/ConfigTestController.php b/core/modules/config/tests/config_test/src/ConfigTestController.php
index a195a6e06f317239e0d8395735e3d7745c8bc03a..6b1bd3305083c2897553d21bd633ab4c3fc39843 100644
--- a/core/modules/config/tests/config_test/src/ConfigTestController.php
+++ b/core/modules/config/tests/config_test/src/ConfigTestController.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\config_test\Entity\ConfigTest;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
diff --git a/core/modules/config_translation/config_translation.module b/core/modules/config_translation/config_translation.module
index d7274cbfa14576a40ce6ab4f13c4aa67ddd37831..93b280fc30cc933c650bb2d4a44c4ae27a4adb83 100644
--- a/core/modules/config_translation/config_translation.module
+++ b/core/modules/config_translation/config_translation.module
@@ -5,11 +5,9 @@
  * Configuration Translation module.
  */
 
-use Drupal\config_translation\Plugin\Derivative\ConfigTranslationLocalTasks;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\field\FieldConfigInterface;
-use Symfony\Component\Routing\Exception\RouteNotFoundException;
 
 /**
  * Implements hook_help().
diff --git a/core/modules/config_translation/src/ConfigEntityMapper.php b/core/modules/config_translation/src/ConfigEntityMapper.php
index 541101bdcd37ab3e0001f7e5ee33fd63fc5850d5..7caf72caed19310b102b440e2f8a0b3984aba8e8 100644
--- a/core/modules/config_translation/src/ConfigEntityMapper.php
+++ b/core/modules/config_translation/src/ConfigEntityMapper.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
-use Drupal\Core\Routing\RouteMatch;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\StringTranslation\TranslationInterface;
diff --git a/core/modules/config_translation/src/ConfigMapperInterface.php b/core/modules/config_translation/src/ConfigMapperInterface.php
index 90d405ac9b22ff67d3cc6fa7ec206a442942c489..b56e4016a569f21f7e2cc5d876bc9c12fb9dbef3 100644
--- a/core/modules/config_translation/src/ConfigMapperInterface.php
+++ b/core/modules/config_translation/src/ConfigMapperInterface.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Routing\RouteCollection;
 
 /**
diff --git a/core/modules/config_translation/src/ConfigNamesMapper.php b/core/modules/config_translation/src/ConfigNamesMapper.php
index 4d98e2a4fcb7b1c94f2794eabbf97e21723a1c8b..5d15dd56ee80195a913764f668373853dd0f96ff 100644
--- a/core/modules/config_translation/src/ConfigNamesMapper.php
+++ b/core/modules/config_translation/src/ConfigNamesMapper.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\TypedConfigManagerInterface;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Plugin\PluginBase;
diff --git a/core/modules/config_translation/src/Form/ConfigTranslationDeleteForm.php b/core/modules/config_translation/src/Form/ConfigTranslationDeleteForm.php
index 8e2b669c09d2db18054917e8cb0d5ce5255bdef6..5b74b954fc794ad09064615afb72ea9943d4b2d3 100644
--- a/core/modules/config_translation/src/Form/ConfigTranslationDeleteForm.php
+++ b/core/modules/config_translation/src/Form/ConfigTranslationDeleteForm.php
@@ -16,7 +16,6 @@
 use Drupal\Core\Url;
 use Drupal\language\ConfigurableLanguageManagerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
diff --git a/core/modules/config_translation/src/Form/ConfigTranslationFormBase.php b/core/modules/config_translation/src/Form/ConfigTranslationFormBase.php
index f7b0497c0378d7cecc2786d380acb4349e4b1e6d..afcb35a7d80b83c2f3856805075e35a6317c3a6f 100644
--- a/core/modules/config_translation/src/Form/ConfigTranslationFormBase.php
+++ b/core/modules/config_translation/src/Form/ConfigTranslationFormBase.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
-use Drupal\Core\TypedData\TraversableTypedDataInterface;
 use Drupal\Core\Form\BaseFormIdInterface;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/config_translation/src/Plugin/Derivative/ConfigTranslationContextualLinks.php b/core/modules/config_translation/src/Plugin/Derivative/ConfigTranslationContextualLinks.php
index 8ecde5e061355cf21edd8ad9334c9252b5428651..0b95881dd5e27955947f493d11b3d83ecafa895a 100644
--- a/core/modules/config_translation/src/Plugin/Derivative/ConfigTranslationContextualLinks.php
+++ b/core/modules/config_translation/src/Plugin/Derivative/ConfigTranslationContextualLinks.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\config_translation\Plugin\Derivative;
 
-use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\config_translation\ConfigMapperManagerInterface;
 use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
diff --git a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
index a18bc9529003970841b2d9568d676f277df233ba..a718808f02e2cbb8b566631f659b339d41eaca96 100644
--- a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
+++ b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Serialization\Json;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Config\FileStorage;
 use Drupal\Core\Language\Language;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/config_translation/tests/src/Unit/ConfigMapperManagerTest.php b/core/modules/config_translation/tests/src/Unit/ConfigMapperManagerTest.php
index 5cb6351ff2e87fcb0c14a81a3353d790aa37c6f5..2dc9c1e50690dedfbc5c52b8e124718b3d19a69a 100644
--- a/core/modules/config_translation/tests/src/Unit/ConfigMapperManagerTest.php
+++ b/core/modules/config_translation/tests/src/Unit/ConfigMapperManagerTest.php
@@ -13,7 +13,6 @@
 use Drupal\Core\TypedData\TypedDataInterface;
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\TypedData\DataDefinition;
-use Drupal\Core\TypedData\DataDefinitionInterface;
 
 /**
  * Tests the functionality provided by configuration translation mapper manager.
diff --git a/core/modules/config_translation/tests/src/Unit/ConfigNamesMapperTest.php b/core/modules/config_translation/tests/src/Unit/ConfigNamesMapperTest.php
index 0223c6fb51e5e3fb837a59bca086cd0aa84f1248..c9d3c31b008823d175e5e4ae67d0a97b9346ae47 100644
--- a/core/modules/config_translation/tests/src/Unit/ConfigNamesMapperTest.php
+++ b/core/modules/config_translation/tests/src/Unit/ConfigNamesMapperTest.php
@@ -15,7 +15,6 @@
 use Drupal\Core\Url;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\Routing\Route;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests the functionality provided by the configuration names mapper.
diff --git a/core/modules/contact/src/ContactFormEditForm.php b/core/modules/contact/src/ContactFormEditForm.php
index c545b0e53abec012c0e0877cd3613a334b8e6880..b4adde6bd2b21ff2199d20200a2986dc40fb69d8 100644
--- a/core/modules/contact/src/ContactFormEditForm.php
+++ b/core/modules/contact/src/ContactFormEditForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\contact;
 
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Entity\EntityForm;
diff --git a/core/modules/contact/src/ContactFormListBuilder.php b/core/modules/contact/src/ContactFormListBuilder.php
index ed027c1bf80f1ad34d16dc03122833a58de8c7da..29ace7703d6a203c1cfaf0b274c6a29aff76d8f3 100644
--- a/core/modules/contact/src/ContactFormListBuilder.php
+++ b/core/modules/contact/src/ContactFormListBuilder.php
@@ -7,10 +7,8 @@
 
 namespace Drupal\contact;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Link;
 
 /**
  * Defines a class to build a listing of contact form entities.
diff --git a/core/modules/contact/src/MessageForm.php b/core/modules/contact/src/MessageForm.php
index fec2ca868ad5b704e0404726d11067408d8f1511..46bb5d972f3ccee7b2d5a16114f6cff0253cc29a 100644
--- a/core/modules/contact/src/MessageForm.php
+++ b/core/modules/contact/src/MessageForm.php
@@ -7,13 +7,11 @@
 
 namespace Drupal\contact;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Datetime\DateFormatterInterface;
 use Drupal\Core\Entity\ContentEntityForm;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Flood\FloodInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/contact/src/Plugin/views/field/ContactLink.php b/core/modules/contact/src/Plugin/views/field/ContactLink.php
index 8b85eb1c4777ff75fb652144d9403b8706a72a37..d5db76977837bda3fb7e2e7b0c912827c197554a 100644
--- a/core/modules/contact/src/Plugin/views/field/ContactLink.php
+++ b/core/modules/contact/src/Plugin/views/field/ContactLink.php
@@ -8,7 +8,6 @@
 namespace Drupal\contact\Plugin\views\field;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Url;
 use Drupal\views\Plugin\views\field\LinkBase;
 use Drupal\views\ResultRow;
diff --git a/core/modules/contact/src/Tests/MessageEntityTest.php b/core/modules/contact/src/Tests/MessageEntityTest.php
index 7d9b9b2af6afd4fa64296d7e2422316b90abf3ed..4e61e211683cf0cf888a6f561636ddc731821551 100644
--- a/core/modules/contact/src/Tests/MessageEntityTest.php
+++ b/core/modules/contact/src/Tests/MessageEntityTest.php
@@ -6,7 +6,6 @@
 
 namespace Drupal\contact\Tests;
 
-use Drupal\contact\Entity\Message;
 use Drupal\system\Tests\Entity\EntityUnitTestBase;
 
 /**
diff --git a/core/modules/content_translation/content_translation.install b/core/modules/content_translation/content_translation.install
index 6565a2b9186a06e305e9996dfd8109e46421b4df..0bfe4149e26d93fb3244eb342f2dab7706b98410 100644
--- a/core/modules/content_translation/content_translation.install
+++ b/core/modules/content_translation/content_translation.install
@@ -5,9 +5,6 @@
  * Installation functions for Content Translation module.
  */
 
-use Drupal\Core\Language\LanguageInterface;
-use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrl;
-
 /**
  * Implements hook_install().
  */
diff --git a/core/modules/content_translation/src/ContentTranslationManager.php b/core/modules/content_translation/src/ContentTranslationManager.php
index d0525e192cf537b59e69265e3adfb61efa8bb2e4..b4d701767c84d544873b91950a00253f298742e8 100644
--- a/core/modules/content_translation/src/ContentTranslationManager.php
+++ b/core/modules/content_translation/src/ContentTranslationManager.php
@@ -9,8 +9,6 @@
 
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Entity\EntityTypeInterface;
-use Drupal\language\Entity\ContentLanguageSettings;
 
 /**
  * Provides common functionality for content translation.
diff --git a/core/modules/content_translation/src/ContentTranslationManagerInterface.php b/core/modules/content_translation/src/ContentTranslationManagerInterface.php
index 5afa2de35cf243597bd411cab26e431b5da630f2..f06c030562ba84171a0e92c214fcbd866695d4ab 100644
--- a/core/modules/content_translation/src/ContentTranslationManagerInterface.php
+++ b/core/modules/content_translation/src/ContentTranslationManagerInterface.php
@@ -8,7 +8,6 @@
 namespace Drupal\content_translation;
 
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Entity\EntityTypeInterface;
 
 /**
  * Provides an interface for common functionality for content translation.
diff --git a/core/modules/content_translation/src/FieldTranslationSynchronizer.php b/core/modules/content_translation/src/FieldTranslationSynchronizer.php
index 6b94671b4f903ad056d38b3155156c8e27b929c7..b2dbf65469ab3196fbde4e479446c35f092223b5 100644
--- a/core/modules/content_translation/src/FieldTranslationSynchronizer.php
+++ b/core/modules/content_translation/src/FieldTranslationSynchronizer.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\Entity\ThirdPartySettingsInterface;
 use Drupal\Core\Entity\ContentEntityInterface;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 
 /**
diff --git a/core/modules/content_translation/src/Plugin/Derivative/ContentTranslationContextualLinks.php b/core/modules/content_translation/src/Plugin/Derivative/ContentTranslationContextualLinks.php
index 9acf39451f5618fc1699de8c6bdf28281fb91352..f1c2fe3a10ad6f687616183cfdfb18bfbbad81f7 100644
--- a/core/modules/content_translation/src/Plugin/Derivative/ContentTranslationContextualLinks.php
+++ b/core/modules/content_translation/src/Plugin/Derivative/ContentTranslationContextualLinks.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
-use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\content_translation\ContentTranslationManagerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/content_translation/src/Routing/ContentTranslationRouteSubscriber.php b/core/modules/content_translation/src/Routing/ContentTranslationRouteSubscriber.php
index 91d4314cfeff216b181b8cd4d138f8b9b083c2d3..a2b54a8a27fd1c895e11f3cffb29b6efd0719ecf 100644
--- a/core/modules/content_translation/src/Routing/ContentTranslationRouteSubscriber.php
+++ b/core/modules/content_translation/src/Routing/ContentTranslationRouteSubscriber.php
@@ -8,7 +8,6 @@
 namespace Drupal\content_translation\Routing;
 
 use Drupal\content_translation\ContentTranslationManagerInterface;
-use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Routing\RouteSubscriberBase;
 use Drupal\Core\Routing\RoutingEvents;
 use Symfony\Component\Routing\Route;
diff --git a/core/modules/content_translation/src/Tests/Views/TranslationLinkTest.php b/core/modules/content_translation/src/Tests/Views/TranslationLinkTest.php
index bb349e2094cf073765a63bd87f59661eaa4f68d7..30ebe9f55c2ff7c41feb9657ad0bacbeeec2c5c2 100644
--- a/core/modules/content_translation/src/Tests/Views/TranslationLinkTest.php
+++ b/core/modules/content_translation/src/Tests/Views/TranslationLinkTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\content_translation\Tests\Views;
 
-use Drupal\views\Tests\ViewTestBase;
 use Drupal\content_translation\Tests\ContentTranslationTestBase;
 use Drupal\views\Tests\ViewTestData;
 use Drupal\Core\Language\Language;
diff --git a/core/modules/contextual/src/ContextualController.php b/core/modules/contextual/src/ContextualController.php
index 975113dc9d1dbcde5f039a13dce8e0193576602d..62ee55a414409773dd9cd43915274bd1d9ebb390 100644
--- a/core/modules/contextual/src/ContextualController.php
+++ b/core/modules/contextual/src/ContextualController.php
@@ -12,7 +12,6 @@
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
-use Drupal\Core\Entity\EntityInterface;
 
 /**
  * Returns responses for Contextual module routes.
diff --git a/core/modules/datetime/datetime.module b/core/modules/datetime/datetime.module
index 9d55b0938b08fc7ed4c2b950fc224d8a7a2fad52..2ad07a241183b7d2698729bc373683be88b21113 100644
--- a/core/modules/datetime/datetime.module
+++ b/core/modules/datetime/datetime.module
@@ -5,9 +5,6 @@
  * Field hooks to implement a simple datetime field.
  */
 
-use Drupal\Component\Utility\NestedArray;
-use Drupal\Core\Datetime\DrupalDateTime;
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 
 /**
diff --git a/core/modules/datetime/src/Tests/Views/FilterDateTimeTest.php b/core/modules/datetime/src/Tests/Views/FilterDateTimeTest.php
index 137f45ccf5891624c82bd019e914822618a0d480..4392cbf1b7572ef6906d8bd9f086aec61aae77ac 100644
--- a/core/modules/datetime/src/Tests/Views/FilterDateTimeTest.php
+++ b/core/modules/datetime/src/Tests/Views/FilterDateTimeTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\datetime\Tests\Views;
 
-use Drupal\Core\Datetime\Element\Datetime;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/dblog/src/Plugin/views/field/DblogOperations.php b/core/modules/dblog/src/Plugin/views/field/DblogOperations.php
index 0aac20f6a5511b125fa81b5bd06310a3f9067761..44592750856e63af29869aef43c9b33069d11cd1 100644
--- a/core/modules/dblog/src/Plugin/views/field/DblogOperations.php
+++ b/core/modules/dblog/src/Plugin/views/field/DblogOperations.php
@@ -9,8 +9,6 @@
 
 use Drupal\views\Plugin\views\field\FieldPluginBase;
 use Drupal\views\ResultRow;
-use Drupal\views\ViewExecutable;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 
 /**
  * Provides a field handler that renders operation link markup.
diff --git a/core/modules/dynamic_page_cache/src/Tests/DynamicPageCacheIntegrationTest.php b/core/modules/dynamic_page_cache/src/Tests/DynamicPageCacheIntegrationTest.php
index 5c174a8a7b61df52b067a45552de7bbcadf4f6f3..ccc91709814e8d95919b5cc728acbcccfe50ec5a 100644
--- a/core/modules/dynamic_page_cache/src/Tests/DynamicPageCacheIntegrationTest.php
+++ b/core/modules/dynamic_page_cache/src/Tests/DynamicPageCacheIntegrationTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Url;
 use Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber;
 use Drupal\simpletest\WebTestBase;
-use Drupal\system\Tests\Cache\AssertPageCacheContextsAndTagsTrait;
 
 /**
  * Enables the Dynamic Page Cache and tests it in various scenarios.
diff --git a/core/modules/dynamic_page_cache/tests/dynamic_page_cache_test/src/DynamicPageCacheTestController.php b/core/modules/dynamic_page_cache/tests/dynamic_page_cache_test/src/DynamicPageCacheTestController.php
index b11984e5eb5e0ec35d1534a62567d5a8225de796..929f3a08af1e8fad02241a1ec2998631d749a836 100644
--- a/core/modules/dynamic_page_cache/tests/dynamic_page_cache_test/src/DynamicPageCacheTestController.php
+++ b/core/modules/dynamic_page_cache/tests/dynamic_page_cache_test/src/DynamicPageCacheTestController.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\dynamic_page_cache_test;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Cache\CacheableResponse;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\user\Entity\User;
diff --git a/core/modules/editor/src/EditorController.php b/core/modules/editor/src/EditorController.php
index 44feda30f836f3880710cf4945d7eac041420962..fd605cd78535db284ea055f90349e940222a655f 100644
--- a/core/modules/editor/src/EditorController.php
+++ b/core/modules/editor/src/EditorController.php
@@ -8,13 +8,9 @@
 namespace Drupal\editor;
 
 use Drupal\Core\Ajax\AjaxResponse;
-use Drupal\Core\Ajax\OpenModalDialogCommand;
-use Drupal\Core\Ajax\CloseModalDialogCommand;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\editor\Ajax\GetUntransformedTextCommand;
-use Drupal\editor\Form\EditorImageDialog;
-use Drupal\editor\Form\EditorLinkDialog;
 use Drupal\filter\Plugin\FilterInterface;
 use Drupal\filter\FilterFormatInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
diff --git a/core/modules/editor/src/Plugin/EditorBase.php b/core/modules/editor/src/Plugin/EditorBase.php
index eafe673fe5399e81e5731a8808aec39c6ef9f434..cc39c18a4ff16d9763997ab86ce3dcfbf69adf71 100644
--- a/core/modules/editor/src/Plugin/EditorBase.php
+++ b/core/modules/editor/src/Plugin/EditorBase.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\PluginBase;
 use Drupal\editor\Entity\Editor;
-use Drupal\editor\Plugin\EditorPluginInterface;
 
 /**
  * Defines a base class from which other modules providing editors may extend.
diff --git a/core/modules/editor/src/Tests/EditorImageDialogTest.php b/core/modules/editor/src/Tests/EditorImageDialogTest.php
index 8efea38fcd4652e870392dfeadcb1161121dd0dd..b1745b0550fbad121c4113a31cb13d661a7c1a8d 100644
--- a/core/modules/editor/src/Tests/EditorImageDialogTest.php
+++ b/core/modules/editor/src/Tests/EditorImageDialogTest.php
@@ -7,20 +7,12 @@
 
 namespace Drupal\editor\Tests;
 
-use Drupal\Core\Form\FormInterface;
 use Drupal\Core\Form\FormState;
-use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Render\Element\PathElement;
-use Drupal\Core\Url;
 use Drupal\editor\Entity\Editor;
 use Drupal\editor\Form\EditorImageDialog;
 use Drupal\filter\Entity\FilterFormat;
 use Drupal\node\Entity\NodeType;
-use Drupal\simpletest\KernelTestBase;
 use Drupal\system\Tests\Entity\EntityUnitTestBase;
-use Drupal\user\Entity\Role;
-use Drupal\user\Entity\User;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests EditorImageDialog validation and conversion functionality.
diff --git a/core/modules/editor/src/Tests/EditorManagerTest.php b/core/modules/editor/src/Tests/EditorManagerTest.php
index c28d99dc83d1569a2c252282c49838de64a95d16..9bb7a67e7c9df09fcf4802f36e1c92315674b363 100644
--- a/core/modules/editor/src/Tests/EditorManagerTest.php
+++ b/core/modules/editor/src/Tests/EditorManagerTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\editor\Tests;
 
 use Drupal\simpletest\KernelTestBase;
-use Drupal\editor\Plugin\EditorManager;
 
 /**
  * Tests detection of text editors and correct generation of attachments.
diff --git a/core/modules/editor/src/Tests/QuickEditIntegrationTest.php b/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
index 098b4cf49755d3ee34dddfd8ea3ac7532352dba9..f9e1625d2c08fc9ea567b7c9ebbc045c8f28ee8d 100644
--- a/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
+++ b/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
@@ -10,9 +10,7 @@
 use Drupal\Component\Serialization\Json;
 use Drupal\Core\EventSubscriber\AjaxResponseSubscriber;
 use Drupal\Core\Language\LanguageInterface;
-use Drupal\quickedit\EditorSelector;
 use Drupal\quickedit\MetadataGenerator;
-use Drupal\quickedit\Plugin\InPlaceEditorManager;
 use Drupal\quickedit\Tests\QuickEditTestBase;
 use Drupal\quickedit_test\MockEditEntityFieldAccessCheck;
 use Drupal\editor\EditorController;
diff --git a/core/modules/field/field.api.php b/core/modules/field/field.api.php
index 55c239d7306caf218c641f631cfc918edbeb1a37..fb85d62bc97b91b323ab45a2658538064bc6411e 100644
--- a/core/modules/field/field.api.php
+++ b/core/modules/field/field.api.php
@@ -5,8 +5,6 @@
  * @{
  */
 
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * @defgroup field_types Field Types API
  * @{
diff --git a/core/modules/field/src/Entity/FieldConfig.php b/core/modules/field/src/Entity/FieldConfig.php
index e2ab409fcf016820229abd2b9c0b3d7e4dc3ca39..8e3fba3ce3db78404eb7222a773f9cafb7eed170 100644
--- a/core/modules/field/src/Entity/FieldConfig.php
+++ b/core/modules/field/src/Entity/FieldConfig.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\field\Entity;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Field\FieldConfigBase;
 use Drupal\Core\Field\FieldException;
diff --git a/core/modules/field/src/Plugin/migrate/source/d7/ViewMode.php b/core/modules/field/src/Plugin/migrate/source/d7/ViewMode.php
index 89bdc78b7e68dbff7841aa05488356145cb245e2..f471e48ff07bd6aad96ea218f392cd51a20be3b0 100644
--- a/core/modules/field/src/Plugin/migrate/source/d7/ViewMode.php
+++ b/core/modules/field/src/Plugin/migrate/source/d7/ViewMode.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\field\Plugin\migrate\source\d7;
 
-use Drupal\migrate\Annotation\MigrateSource;
 use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
 
 /**
diff --git a/core/modules/field/src/Tests/Boolean/BooleanFormatterSettingsTest.php b/core/modules/field/src/Tests/Boolean/BooleanFormatterSettingsTest.php
index e9b693dc83c3f7ade1632fbbc0314cb7e4b13061..8c5146b49e35709b51ae235ef573061a3a6686a4 100644
--- a/core/modules/field/src/Tests/Boolean/BooleanFormatterSettingsTest.php
+++ b/core/modules/field/src/Tests/Boolean/BooleanFormatterSettingsTest.php
@@ -9,8 +9,6 @@
 
 use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
-use Drupal\Core\Entity\FieldableEntityInterface;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\simpletest\WebTestBase;
diff --git a/core/modules/field/src/Tests/EntityReference/EntityReferenceIntegrationTest.php b/core/modules/field/src/Tests/EntityReference/EntityReferenceIntegrationTest.php
index 0d1fe9bb10fd561b902df71b8bb91d7721097230..e73d4897313798d65d39e829229dc6fe708a4365 100644
--- a/core/modules/field/src/Tests/EntityReference/EntityReferenceIntegrationTest.php
+++ b/core/modules/field/src/Tests/EntityReference/EntityReferenceIntegrationTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\config\Tests\AssertConfigEntityImportTrait;
-use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\simpletest\WebTestBase;
 
diff --git a/core/modules/field/src/Tests/FieldAttachOtherTest.php b/core/modules/field/src/Tests/FieldAttachOtherTest.php
index 9441f679c146768095d9125e2220f52b8e7e3b44..e76145e41cebf1cf84c8e7327e812772978840cf 100644
--- a/core/modules/field/src/Tests/FieldAttachOtherTest.php
+++ b/core/modules/field/src/Tests/FieldAttachOtherTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\field\Tests;
 
 use Drupal\Core\Form\FormState;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Tests other Field API functions.
diff --git a/core/modules/field/src/Tests/Migrate/d6/MigrateFieldFormatterSettingsTest.php b/core/modules/field/src/Tests/Migrate/d6/MigrateFieldFormatterSettingsTest.php
index 435c83c37a30d3fe7c92d57b247543c04804c349..1ad3d36fb8612bfa82fe87e226b690e5f129b28a 100644
--- a/core/modules/field/src/Tests/Migrate/d6/MigrateFieldFormatterSettingsTest.php
+++ b/core/modules/field/src/Tests/Migrate/d6/MigrateFieldFormatterSettingsTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\field\Tests\Migrate\d6;
 
 use Drupal\Core\Entity\Entity\EntityViewDisplay;
-use Drupal\Core\Entity\Entity\EntityViewMode;
 use Drupal\migrate\Entity\Migration;
 use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
 
diff --git a/core/modules/field/tests/modules/field_test/field_test.module b/core/modules/field/tests/modules/field_test/field_test.module
index bf608d8ddc05e2e6c1fd48d966f9e37fe966d91b..c66a0d682d5a5fb0e2c24e4acb125364be09e3c5 100644
--- a/core/modules/field/tests/modules/field_test/field_test.module
+++ b/core/modules/field/tests/modules/field_test/field_test.module
@@ -1,6 +1,5 @@
 <?php
 
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\field\FieldStorageConfigInterface;
 use Drupal\Core\Form\FormStateInterface;
 
diff --git a/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/HiddenTestItem.php b/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/HiddenTestItem.php
index bbac2293583c556c7450d88e69dac57fa1518b7a..f0d4fdbdbe80e81ca7a947836cd01d888e159262 100644
--- a/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/HiddenTestItem.php
+++ b/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldType/HiddenTestItem.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\field_test\Plugin\Field\FieldType;
 
-use Drupal\Core\Field\FieldStorageDefinitionInterface;
-use Drupal\Core\TypedData\DataDefinition;
-
 /**
  * Defines the 'hidden_test' entity field item.
  *
diff --git a/core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php b/core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php
index 4cf0065435a1ab5c093dab81f278b5b529b9a8a0..e7e2a2dc646f0a1771c48e8cebbb6632247f5b11 100644
--- a/core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php
+++ b/core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\EntityType;
 use Drupal\Core\Field\FieldDefinitionInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\Tests\UnitTestCase;
diff --git a/core/modules/field/tests/src/Unit/FieldStorageConfigEntityUnitTest.php b/core/modules/field/tests/src/Unit/FieldStorageConfigEntityUnitTest.php
index e41615b9429a1214d27b62c05b4dee9d39453837..13ba3cf93daab6f32ab4af21d70ca6291cd16a7e 100644
--- a/core/modules/field/tests/src/Unit/FieldStorageConfigEntityUnitTest.php
+++ b/core/modules/field/tests/src/Unit/FieldStorageConfigEntityUnitTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\field\Unit;
 
 use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\Field\FieldItemBase;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\Core\Field\FieldTypePluginManagerInterface;
 use Drupal\field\Entity\FieldStorageConfig;
diff --git a/core/modules/field_ui/src/Controller/FieldConfigListController.php b/core/modules/field_ui/src/Controller/FieldConfigListController.php
index 649e7bba643008ea12f1e9b76419731e5f20df58..9555cad10c1123ab863fd3973678d1483fae6f44 100644
--- a/core/modules/field_ui/src/Controller/FieldConfigListController.php
+++ b/core/modules/field_ui/src/Controller/FieldConfigListController.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\Controller\EntityListController;
 use Drupal\Core\Routing\RouteMatchInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Defines a controller to list field instances.
diff --git a/core/modules/field_ui/src/Plugin/Derivative/FieldUiLocalTask.php b/core/modules/field_ui/src/Plugin/Derivative/FieldUiLocalTask.php
index 6c869e5003dcc151e18a902bdfbc752514272781..14c2aecb1d19e43ae3ecf1dfd768fd4d6f6e371a 100644
--- a/core/modules/field_ui/src/Plugin/Derivative/FieldUiLocalTask.php
+++ b/core/modules/field_ui/src/Plugin/Derivative/FieldUiLocalTask.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\field_ui\Plugin\Derivative;
 
-use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
diff --git a/core/modules/file/file.field.inc b/core/modules/file/file.field.inc
index aac6bd8ff2d680e0aa601f60bae571ff68b4992c..6c065758a3c501bed7fe4ae038f8219a052d6e16 100644
--- a/core/modules/file/file.field.inc
+++ b/core/modules/file/file.field.inc
@@ -5,7 +5,6 @@
  * Field module functionality for the File module.
  */
 
-use Drupal\Component\Utility\Html;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldFilteredMarkup;
 use Drupal\Core\Render\Element;
diff --git a/core/modules/file/file.module b/core/modules/file/file.module
index b198dcb2bb1b72350a16e7cdd2e00a5ba48f525b..d48b23209590c3ded5d9c2c071a30c636c646e9f 100644
--- a/core/modules/file/file.module
+++ b/core/modules/file/file.module
@@ -18,7 +18,6 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Template\Attribute;
-use Drupal\file\FileUsage\FileUsageInterface;
 
 // Load all Field module hooks for File.
 require_once __DIR__ . '/file.field.inc';
diff --git a/core/modules/file/src/FileInterface.php b/core/modules/file/src/FileInterface.php
index 8dd131b021ab72ca313dd285f6550fa8bd6039f4..1b02d1f4ada75563622443c81cf9f05f84a14586 100644
--- a/core/modules/file/src/FileInterface.php
+++ b/core/modules/file/src/FileInterface.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\user\EntityOwnerInterface;
 use Drupal\Core\Entity\EntityChangedInterface;
-use Drupal\user\UserInterface;
 
 /**
  * Defines getter and setter methods for file entity base fields.
diff --git a/core/modules/file/src/FileUsage/DatabaseFileUsageBackend.php b/core/modules/file/src/FileUsage/DatabaseFileUsageBackend.php
index e28c94b613a89814e8a650cfdddefc32e4e5c07e..e00b9f26c291ca5dfa81a6869fc15618c43c8aa9 100644
--- a/core/modules/file/src/FileUsage/DatabaseFileUsageBackend.php
+++ b/core/modules/file/src/FileUsage/DatabaseFileUsageBackend.php
@@ -8,7 +8,6 @@
 namespace Drupal\file\FileUsage;
 
 use Drupal\Core\Database\Connection;
-use Drupal\Core\Database\DatabaseExceptionWrapper;
 use Drupal\file\FileInterface;
 
 /**
diff --git a/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php b/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
index 7d32ce90f93c24862b4ec4bff4af1b04f9f5cbc4..bd511c8cf2678c8aad727b0c2a435c504c61ec3a 100644
--- a/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
+++ b/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
@@ -17,7 +17,6 @@
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Render\ElementInfoManagerInterface;
-use Drupal\Core\Url;
 use Drupal\file\Element\ManagedFile;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\file\Entity\File;
diff --git a/core/modules/file/src/Plugin/views/field/File.php b/core/modules/file/src/Plugin/views/field/File.php
index 77237e82aa9174e817ef4ebde9e62c9e30ab072f..615aa9f8e98c2cac0cd59553573ac5833c9ca8bb 100644
--- a/core/modules/file/src/Plugin/views/field/File.php
+++ b/core/modules/file/src/Plugin/views/field/File.php
@@ -8,7 +8,6 @@
 namespace Drupal\file\Plugin\views\field;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Url;
 use Drupal\views\ResultRow;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
diff --git a/core/modules/file/src/Tests/DownloadTest.php b/core/modules/file/src/Tests/DownloadTest.php
index ea2b7456e6b6e6f0a2d39971ea1756e9671329a4..997eb560a63ce67f03cfd3b2da5b84e51cf102b1 100644
--- a/core/modules/file/src/Tests/DownloadTest.php
+++ b/core/modules/file/src/Tests/DownloadTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\file\Tests;
 
-use Symfony\Component\HttpFoundation\Request;
-
 /**
  * Tests for download/file transfer functions.
  *
diff --git a/core/modules/file/src/Tests/FileFieldRSSContentTest.php b/core/modules/file/src/Tests/FileFieldRSSContentTest.php
index 5314a7bbb39e21653f9b3061802c7b8b7568e36a..dd31f85a2af122709d05d24650abc89a63c4fd05 100644
--- a/core/modules/file/src/Tests/FileFieldRSSContentTest.php
+++ b/core/modules/file/src/Tests/FileFieldRSSContentTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\file\Tests;
 
-use Drupal\node\Entity\Node;
 use Drupal\file\Entity\File;
 
 /**
diff --git a/core/modules/file/src/Tests/SaveTest.php b/core/modules/file/src/Tests/SaveTest.php
index 97d4882e6ca11868b818fc98b8b50485b1c294cf..ecd7d6095c518bf957e061388f48c67c712a127d 100644
--- a/core/modules/file/src/Tests/SaveTest.php
+++ b/core/modules/file/src/Tests/SaveTest.php
@@ -8,9 +8,6 @@
 namespace Drupal\file\Tests;
 
 use Drupal\file\Entity\File;
-use Drupal\Core\Entity\EntityStorageException;
-use Drupal\Core\Entity\EntityStorageInterface;
-use Drupal\Core\Entity\Sql\SqlEntityStorageInterface;
 
 /**
  * File saving tests.
diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 3afa7a11366ab1adfc7ee2e81d4e2540ed81410f..f1f28b516709890cf8215fcf4865bbf7b2658453 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -7,7 +7,6 @@
 
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Routing\RouteMatchInterface;
diff --git a/core/modules/filter/src/Element/ProcessedText.php b/core/modules/filter/src/Element/ProcessedText.php
index 6a3fa4018390b9cc3de2d6f79de0ada3eed1d5f4..fc7e52b932a7063f4cbe7c561875cd17bf561c93 100644
--- a/core/modules/filter/src/Element/ProcessedText.php
+++ b/core/modules/filter/src/Element/ProcessedText.php
@@ -7,11 +7,9 @@
 
 namespace Drupal\filter\Element;
 
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\Element\RenderElement;
-use Drupal\Core\Render\Renderer;
 use Drupal\filter\Entity\FilterFormat;
 use Drupal\filter\Plugin\FilterInterface;
 use Drupal\filter\Render\FilteredMarkup;
diff --git a/core/modules/filter/src/FilterFormatFormBase.php b/core/modules/filter/src/FilterFormatFormBase.php
index e1222b45d1980fdb906c9df18d4e07ae0efd0a10..a528c0d90be6a3d8ac2b6287338506f80c075835 100644
--- a/core/modules/filter/src/FilterFormatFormBase.php
+++ b/core/modules/filter/src/FilterFormatFormBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\filter;
 
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\EntityForm;
 use Drupal\Core\Entity\Query\QueryFactory;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/filter/src/Tests/FilterAPITest.php b/core/modules/filter/src/Tests/FilterAPITest.php
index b8a93f1ddf9af7df2d789afa966b0faa26aaf149..08a5e56b1f57e7813bcce5c2683415b689ecfab2 100644
--- a/core/modules/filter/src/Tests/FilterAPITest.php
+++ b/core/modules/filter/src/Tests/FilterAPITest.php
@@ -8,7 +8,6 @@
 namespace Drupal\filter\Tests;
 
 use Drupal\Core\Language\LanguageInterface;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Session\AnonymousUserSession;
 use Drupal\Core\TypedData\OptionsProviderInterface;
 use Drupal\Core\TypedData\DataDefinition;
diff --git a/core/modules/filter/src/Tests/FilterUnitTest.php b/core/modules/filter/src/Tests/FilterUnitTest.php
index 1e3d3337f8979e58143d89ed6a6a9b9497dd8303..a407ebf343f2ce394b888e54b69af54700232856 100644
--- a/core/modules/filter/src/Tests/FilterUnitTest.php
+++ b/core/modules/filter/src/Tests/FilterUnitTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\filter\Tests;
 
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Language\Language;
 use Drupal\Core\Render\RenderContext;
 use Drupal\editor\EditorXssFilter\Standard;
diff --git a/core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php b/core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php
index 9e56c9bf9d050021fc04515fc30739532968e823..8d5608d31d2f9ecc6f1050f6a8ab947a8a62d2ac 100644
--- a/core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php
+++ b/core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php
@@ -10,7 +10,6 @@
 use Drupal\filter\FilterProcessResult;
 use Drupal\filter\Plugin\FilterBase;
 use Drupal\Core\Cache\CacheableMetadata;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Provides a test filter to merge with CacheableMetadata.
diff --git a/core/modules/forum/forum.module b/core/modules/forum/forum.module
index 7921a36caeef422e365996852e13cc8d9369a594..c82c167b54b118632a23342320d40d6d84889ee5 100644
--- a/core/modules/forum/forum.module
+++ b/core/modules/forum/forum.module
@@ -7,7 +7,6 @@
 
 use Drupal\comment\CommentInterface;
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Url;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/forum/src/Form/Overview.php b/core/modules/forum/src/Form/Overview.php
index 5f9b6f33c4d5934b5d0bd652e2e60bd8ce6ffe49..720ee85f9728168b675577f0e337a628e1756a95 100644
--- a/core/modules/forum/src/Form/Overview.php
+++ b/core/modules/forum/src/Form/Overview.php
@@ -12,9 +12,7 @@
 use Drupal\Core\Render\Element;
 use Drupal\Core\Url;
 use Drupal\taxonomy\Form\OverviewTerms;
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /*
diff --git a/core/modules/forum/src/Plugin/Block/ForumBlockBase.php b/core/modules/forum/src/Plugin/Block/ForumBlockBase.php
index 5e8fbebc553b1c70143fea57697b913f6582de45..53b07272bcde8ae91c1e7f65f23c26065d95946d 100644
--- a/core/modules/forum/src/Plugin/Block/ForumBlockBase.php
+++ b/core/modules/forum/src/Plugin/Block/ForumBlockBase.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Url;
 
 /**
diff --git a/core/modules/forum/src/Plugin/Validation/Constraint/ForumLeafConstraintValidator.php b/core/modules/forum/src/Plugin/Validation/Constraint/ForumLeafConstraintValidator.php
index f2d240067bef11fd61ef6b7f8c824188eeb9562f..10dd3cfc5e3ebbf8b0939e6d18043c491223d665 100644
--- a/core/modules/forum/src/Plugin/Validation/Constraint/ForumLeafConstraintValidator.php
+++ b/core/modules/forum/src/Plugin/Validation/Constraint/ForumLeafConstraintValidator.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\forum\Plugin\Validation\Constraint;
 
-use Drupal\Component\Utility\Unicode;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidator;
 
diff --git a/core/modules/forum/src/Tests/ForumUninstallTest.php b/core/modules/forum/src/Tests/ForumUninstallTest.php
index d6186f05c82b43b833d7701cfd493fe26cd67949..8eb13452f996880af1e2a86d3575585cf16bf8d4 100644
--- a/core/modules/forum/src/Tests/ForumUninstallTest.php
+++ b/core/modules/forum/src/Tests/ForumUninstallTest.php
@@ -8,10 +8,6 @@
 namespace Drupal\forum\Tests;
 
 use Drupal\comment\CommentInterface;
-use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
-use Drupal\Core\DrupalKernel;
-use Drupal\Core\Session\UserSession;
-use Drupal\Core\Site\Settings;
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\node\Entity\NodeType;
 use Drupal\simpletest\WebTestBase;
diff --git a/core/modules/forum/src/Tests/Migrate/d7/MigrateForumSettingsTest.php b/core/modules/forum/src/Tests/Migrate/d7/MigrateForumSettingsTest.php
index 008ace0cd2466747025d1f7983b6eb44a1c5bdeb..9eb80e7cd753196968f49df8e69c20541846c921 100644
--- a/core/modules/forum/src/Tests/Migrate/d7/MigrateForumSettingsTest.php
+++ b/core/modules/forum/src/Tests/Migrate/d7/MigrateForumSettingsTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\forum\Tests\Migrate\d7;
 
-use Drupal\migrate\Entity\Migration;
-use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate_drupal\Tests\d7\MigrateDrupal7TestBase;
 
 /**
diff --git a/core/modules/forum/tests/src/Unit/Breadcrumb/ForumListingBreadcrumbBuilderTest.php b/core/modules/forum/tests/src/Unit/Breadcrumb/ForumListingBreadcrumbBuilderTest.php
index b59139491718470f3c7e9cf5f9ee5e4339436bd5..36fd401ebdc7000d3a46e48232fe5d6f560bee59 100644
--- a/core/modules/forum/tests/src/Unit/Breadcrumb/ForumListingBreadcrumbBuilderTest.php
+++ b/core/modules/forum/tests/src/Unit/Breadcrumb/ForumListingBreadcrumbBuilderTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Link;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\DependencyInjection\Container;
 
 /**
diff --git a/core/modules/hal/src/Normalizer/NormalizerBase.php b/core/modules/hal/src/Normalizer/NormalizerBase.php
index 9b049777ef484b1b292fd67a7b4bd63e1bb4396a..e92a1e27ffc7f7510993f8debef77b7e0af04407 100644
--- a/core/modules/hal/src/Normalizer/NormalizerBase.php
+++ b/core/modules/hal/src/Normalizer/NormalizerBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\hal\Normalizer;
 
-use Drupal\serialization\EntityResolver\EntityResolverInterface;
 use Drupal\serialization\Normalizer\NormalizerBase as SerializationNormalizerBase;
 use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
 
diff --git a/core/modules/help/src/Plugin/Block/HelpBlock.php b/core/modules/help/src/Plugin/Block/HelpBlock.php
index abe3c254eadc76263a62ad0c518640a49c216c3a..0a29dddff56e29fd9aee34e7ab1d4bd39c4bfce5 100644
--- a/core/modules/help/src/Plugin/Block/HelpBlock.php
+++ b/core/modules/help/src/Plugin/Block/HelpBlock.php
@@ -7,12 +7,10 @@
 
 namespace Drupal\help\Plugin\Block;
 
-use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
-use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
 
diff --git a/core/modules/image/image.field.inc b/core/modules/image/image.field.inc
index 49c6534f5808da3bc269aff9d5b0b64ac4fe8203..1bf4369e7bd6b4feb32c0a149f137b31d94c389f 100644
--- a/core/modules/image/image.field.inc
+++ b/core/modules/image/image.field.inc
@@ -5,7 +5,6 @@
  * Implement an image field, based on the file module's file field.
  */
 
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Render\Element;
 
diff --git a/core/modules/image/src/Form/ImageEffectAddForm.php b/core/modules/image/src/Form/ImageEffectAddForm.php
index e491d0791433860166e869a11586f8925768b822..8bbe2c4a0fa201aba86c62521c5047e0c6cc10e2 100644
--- a/core/modules/image/src/Form/ImageEffectAddForm.php
+++ b/core/modules/image/src/Form/ImageEffectAddForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\image\Form;
 
-use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\image\ImageEffectManager;
 use Drupal\image\ImageStyleInterface;
diff --git a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatter.php b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatter.php
index aa24a9551e590de8229939d5053b1815cb4b2b98..57204152732ca43db034286af8b836fa8849b9b5 100644
--- a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatter.php
+++ b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatter.php
@@ -12,10 +12,8 @@
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Link;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\Core\Routing\UrlGeneratorInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Url;
-use Drupal\Core\Utility\LinkGeneratorInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Cache\Cache;
diff --git a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
index 6f794974bf872917648f980f88cd3b2902387070..899aa495789b35b2964cec84092d66ffe4a2fc7f 100644
--- a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
+++ b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\image\Plugin\Field\FieldFormatter;
 
 use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\field\FieldConfigInterface;
 use Drupal\file\Plugin\Field\FieldFormatter\FileFormatterBase;
 
diff --git a/core/modules/image/src/Plugin/migrate/process/d6/ImageCacheActions.php b/core/modules/image/src/Plugin/migrate/process/d6/ImageCacheActions.php
index deb9934411233f7674a779ad31ffc9285d5b47b7..30e4dec6788fd99350e619b94ae515380bf19082 100644
--- a/core/modules/image/src/Plugin/migrate/process/d6/ImageCacheActions.php
+++ b/core/modules/image/src/Plugin/migrate/process/d6/ImageCacheActions.php
@@ -8,7 +8,6 @@
 namespace Drupal\image\Plugin\migrate\process\d6;
 
 use Drupal\migrate\MigrateExecutableInterface;
-use Drupal\migrate\MigrateSkipRowException;
 use Drupal\migrate\ProcessPluginBase;
 use Drupal\migrate\Row;
 
diff --git a/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php b/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
index 1de06071581c9f9a4dafd20f4c97ab1b428f4081..81c16285d7dba00e0dabd9c7dbdabd1f5cd31ef4 100644
--- a/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
+++ b/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\image\Tests;
 
 use Drupal\simpletest\WebTestBase;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests the functions for generating paths and URLs for image styles.
diff --git a/core/modules/image/src/Tests/Migrate/d6/MigrateImageCacheTest.php b/core/modules/image/src/Tests/Migrate/d6/MigrateImageCacheTest.php
index 55cdc27cc9bb4fca24082cc608a8d5d266dac382..5e1a22c42c7946e40d672cf7c56d0b8b97d424fe 100644
--- a/core/modules/image/src/Tests/Migrate/d6/MigrateImageCacheTest.php
+++ b/core/modules/image/src/Tests/Migrate/d6/MigrateImageCacheTest.php
@@ -9,9 +9,7 @@
 
 use Drupal\Core\Database\Database;
 use Drupal\image\Entity\ImageStyle;
-use \Drupal\image\ConfigurableImageEffectBase;
 use Drupal\migrate\Entity\MigrationInterface;
-use Drupal\migrate\MigrateException;
 use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
 
 /**
diff --git a/core/modules/language/src/ConfigurableLanguageInterface.php b/core/modules/language/src/ConfigurableLanguageInterface.php
index 401848bc9924c3302ca3a76aa48860ecdaea9e59..9106df5685f8c680c3e382b606310e7730797044 100644
--- a/core/modules/language/src/ConfigurableLanguageInterface.php
+++ b/core/modules/language/src/ConfigurableLanguageInterface.php
@@ -8,7 +8,6 @@
 namespace Drupal\language;
 
 use Drupal\Core\Config\Entity\ConfigEntityInterface;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Language\LanguageInterface;
 
 /**
diff --git a/core/modules/language/src/ConfigurableLanguageManagerInterface.php b/core/modules/language/src/ConfigurableLanguageManagerInterface.php
index 8f78de75db0e55adb5b87b6a90f3a5a9b7c1e46c..57d365df795fde44856fbec8886bc6162709f75a 100644
--- a/core/modules/language/src/ConfigurableLanguageManagerInterface.php
+++ b/core/modules/language/src/ConfigurableLanguageManagerInterface.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Common interface for language negotiation services.
diff --git a/core/modules/language/src/Form/LanguageAddForm.php b/core/modules/language/src/Form/LanguageAddForm.php
index d43927b5d002d0a9bf0dec8b3e7b69a533338782..964883c892ec1a89318425020b28c49b581cd8d5 100644
--- a/core/modules/language/src/Form/LanguageAddForm.php
+++ b/core/modules/language/src/Form/LanguageAddForm.php
@@ -11,8 +11,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Language\LanguageManager;
 use Drupal\language\Entity\ConfigurableLanguage;
-use Drupal\language\Form\LanguageFormBase;
-use Drupal\Core\Language\Language;
 
 /**
  * Controller for language addition forms.
diff --git a/core/modules/language/src/Form/LanguageDeleteForm.php b/core/modules/language/src/Form/LanguageDeleteForm.php
index 3dfdb352433e07115da41c4ccf1c3a642a58cc3e..9810f2c0d4374387f98e306c67eb35fce716dccb 100644
--- a/core/modules/language/src/Form/LanguageDeleteForm.php
+++ b/core/modules/language/src/Form/LanguageDeleteForm.php
@@ -8,7 +8,6 @@
 namespace Drupal\language\Form;
 
 use Drupal\Core\Entity\EntityDeleteForm;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Defines a confirmation form for deleting a language entity.
diff --git a/core/modules/language/src/Form/LanguageEditForm.php b/core/modules/language/src/Form/LanguageEditForm.php
index 79a3a171efd3ae2bee38a9ce478888a17411e9c9..bb5abdedbfbd1efad690498786d2c3efdecd143a 100644
--- a/core/modules/language/src/Form/LanguageEditForm.php
+++ b/core/modules/language/src/Form/LanguageEditForm.php
@@ -8,7 +8,6 @@
 namespace Drupal\language\Form;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\language\Form\LanguageFormBase;
 
 /**
  * Controller for language edit forms.
diff --git a/core/modules/language/src/Form/NegotiationBrowserDeleteForm.php b/core/modules/language/src/Form/NegotiationBrowserDeleteForm.php
index 857cf32580eb83444fec4f3dc06679ee05a31ed3..2877d4deb6cf612764cdd440f85a1b229eccf9a1 100644
--- a/core/modules/language/src/Form/NegotiationBrowserDeleteForm.php
+++ b/core/modules/language/src/Form/NegotiationBrowserDeleteForm.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Form\ConfirmFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Defines a confirmation form for deleting a browser language negotiation mapping.
diff --git a/core/modules/language/src/Form/NegotiationConfigureForm.php b/core/modules/language/src/Form/NegotiationConfigureForm.php
index 7f230451577ad7863053f592d3625fec721aa549..a5b79a7c4951018b4ef332be533d72d9c4e3918a 100644
--- a/core/modules/language/src/Form/NegotiationConfigureForm.php
+++ b/core/modules/language/src/Form/NegotiationConfigureForm.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Block\BlockManagerInterface;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Extension\ThemeHandlerInterface;
diff --git a/core/modules/language/src/Tests/Condition/LanguageConditionTest.php b/core/modules/language/src/Tests/Condition/LanguageConditionTest.php
index 9cd3cf9d4e96fe7dc65e06072ce81289626f1f45..e976ae0b447f68e33edf49f051436ff2fa07ce27 100644
--- a/core/modules/language/src/Tests/Condition/LanguageConditionTest.php
+++ b/core/modules/language/src/Tests/Condition/LanguageConditionTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\simpletest\KernelTestBase;
-use Drupal\Core\Condition\ConditionManager;
 
 /**
  * Tests that the language condition, provided by the language module, is
diff --git a/core/modules/language/src/Tests/LanguageBrowserDetectionTest.php b/core/modules/language/src/Tests/LanguageBrowserDetectionTest.php
index c66fce7f71b5a04b21eab9068ee5543105c0e4db..845528bfd58e73a226e5c5669babb6b64bedd7c3 100644
--- a/core/modules/language/src/Tests/LanguageBrowserDetectionTest.php
+++ b/core/modules/language/src/Tests/LanguageBrowserDetectionTest.php
@@ -7,10 +7,7 @@
 
 namespace Drupal\language\Tests;
 
-use Drupal\Component\Utility\UserAgent;
-use Drupal\Core\Language\Language;
 use Drupal\simpletest\WebTestBase;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests browser language detection.
diff --git a/core/modules/language/src/Tests/LanguageDependencyInjectionTest.php b/core/modules/language/src/Tests/LanguageDependencyInjectionTest.php
index 8b289abce5de606caee2763bc06cac0580914a0b..fc13a61b167e2fda184bdd34c2e901b8a7486e03 100644
--- a/core/modules/language/src/Tests/LanguageDependencyInjectionTest.php
+++ b/core/modules/language/src/Tests/LanguageDependencyInjectionTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\language\Tests;
 
-use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\Language\Language;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\language\Exception\DeleteDefaultLanguageException;
 
diff --git a/core/modules/language/tests/language_test/src/Plugin/LanguageNegotiation/LanguageNegotiationTestTs.php b/core/modules/language/tests/language_test/src/Plugin/LanguageNegotiation/LanguageNegotiationTestTs.php
index c9d1e9c0836cef0116477f698695847a86204237..4efde9f2a7dd5a6f0070ac15836eff40fd44c5f0 100644
--- a/core/modules/language/tests/language_test/src/Plugin/LanguageNegotiation/LanguageNegotiationTestTs.php
+++ b/core/modules/language/tests/language_test/src/Plugin/LanguageNegotiation/LanguageNegotiationTestTs.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\language_test\Plugin\LanguageNegotiation;
 
-use Symfony\Component\HttpFoundation\Request;
-
 /**
  * Class for identifying language from a selected language.
  *
diff --git a/core/modules/language/tests/src/Unit/ConfigurableLanguageUnitTest.php b/core/modules/language/tests/src/Unit/ConfigurableLanguageUnitTest.php
index 44967ada5766b9daace7ee75e4ce75ad18c4b4d5..02e745777de572c52bfe199db1aaf7115fab398a 100644
--- a/core/modules/language/tests/src/Unit/ConfigurableLanguageUnitTest.php
+++ b/core/modules/language/tests/src/Unit/ConfigurableLanguageUnitTest.php
@@ -6,9 +6,6 @@
 
 namespace Drupal\Tests\language\Unit;
 
-use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\Entity\EntityType;
-use Drupal\Core\Language\Language;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\Tests\UnitTestCase;
 
diff --git a/core/modules/language/tests/src/Unit/LanguageNegotiationUrlTest.php b/core/modules/language/tests/src/Unit/LanguageNegotiationUrlTest.php
index d0d946e064a8a01a3473afcd3aed2419ceec7ddb..f1d2914fe9b789ffc1b5a50a1909a2cc76d4dbf0 100644
--- a/core/modules/language/tests/src/Unit/LanguageNegotiationUrlTest.php
+++ b/core/modules/language/tests/src/Unit/LanguageNegotiationUrlTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Render\BubbleableMetadata;
-use Drupal\Core\Session\UserSession;
 use Drupal\Tests\UnitTestCase;
 use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrl;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
diff --git a/core/modules/link/src/Plugin/Field/FieldFormatter/LinkFormatter.php b/core/modules/link/src/Plugin/Field/FieldFormatter/LinkFormatter.php
index aeb208cdaa4369db4cad35dfdb67eb70f6a56dd9..a7e104b1f498bb9b9b8fc41273ad33ac08b28d39 100644
--- a/core/modules/link/src/Plugin/Field/FieldFormatter/LinkFormatter.php
+++ b/core/modules/link/src/Plugin/Field/FieldFormatter/LinkFormatter.php
@@ -8,7 +8,6 @@
 namespace Drupal\link\Plugin\Field\FieldFormatter;
 
 use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\FormatterBase;
@@ -18,7 +17,6 @@
 use Drupal\Core\Url;
 use Drupal\link\LinkItemInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Plugin implementation of the 'link' formatter.
diff --git a/core/modules/link/src/Plugin/Field/FieldType/LinkItem.php b/core/modules/link/src/Plugin/Field/FieldType/LinkItem.php
index 4c0467c64b98b808c3cb9ad248ba1e9c3c7b8384..5c21ace87b1b36c03c27ce736dc6fc8a55fec1fc 100644
--- a/core/modules/link/src/Plugin/Field/FieldType/LinkItem.php
+++ b/core/modules/link/src/Plugin/Field/FieldType/LinkItem.php
@@ -8,7 +8,6 @@
 namespace Drupal\link\Plugin\Field\FieldType;
 
 use Drupal\Component\Utility\Random;
-use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemBase;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
index b2470e637ba7e7fd314693d9c4a4cd3ee3407909..9c97caa725b3172f587d76906b9e69c0f296f6c0 100644
--- a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
+++ b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
@@ -7,14 +7,11 @@
 
 namespace Drupal\link\Plugin\Field\FieldWidget;
 
-use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Entity\Element\EntityAutocomplete;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\WidgetBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Url;
 use Drupal\link\LinkItemInterface;
-use Symfony\Component\Routing\Exception\RouteNotFoundException;
 use Symfony\Component\Validator\ConstraintViolation;
 use Symfony\Component\Validator\ConstraintViolationListInterface;
 
diff --git a/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkAccessConstraintValidatorTest.php b/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkAccessConstraintValidatorTest.php
index 82db60c77390c379752600a5019c1988aa5e35ec..7089e4718cbb6f672a78bd86b783f607e2156a0c 100644
--- a/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkAccessConstraintValidatorTest.php
+++ b/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkAccessConstraintValidatorTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\link\Unit\Plugin\Validation\Constraint;
 
-use Drupal\Core\Url;
 use Drupal\link\Plugin\Validation\Constraint\LinkAccessConstraint;
 use Drupal\link\Plugin\Validation\Constraint\LinkAccessConstraintValidator;
 use Drupal\Tests\UnitTestCase;
diff --git a/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkNotExistingInternalConstraintValidatorTest.php b/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkNotExistingInternalConstraintValidatorTest.php
index 2325306c9abb3b0930e3a21247b9dfe140b2385d..aa2e527bb75a67f87dd58066833613f7f3765c87 100644
--- a/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkNotExistingInternalConstraintValidatorTest.php
+++ b/core/modules/link/tests/src/Unit/Plugin/Validation/Constraint/LinkNotExistingInternalConstraintValidatorTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\link\Unit\Plugin\Validation\Constraint;
 
-use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Url;
 use Drupal\link\Plugin\Validation\Constraint\LinkNotExistingInternalConstraint;
 use Drupal\link\Plugin\Validation\Constraint\LinkNotExistingInternalConstraintValidator;
diff --git a/core/modules/locale/locale.install b/core/modules/locale/locale.install
index 94b5a44245bbcb081cd4e2fb62ea9f2c13f89a60..0755104411f6b391665c97cb14a9ff57fceb7e75 100644
--- a/core/modules/locale/locale.install
+++ b/core/modules/locale/locale.install
@@ -6,8 +6,6 @@
  */
 
 use Drupal\Core\Url;
-use Drupal\Core\Language\Language;
-use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationSelected;
 
 /**
  * Implements hook_install().
diff --git a/core/modules/locale/locale.module b/core/modules/locale/locale.module
index 387d0c3b7c2f1bb9499a0a82d5a6a020bf2047ae..ca8df47464da0b7d7701b23c1751dd9063844f9c 100644
--- a/core/modules/locale/locale.module
+++ b/core/modules/locale/locale.module
@@ -16,11 +16,8 @@
 use Drupal\Component\Utility\Xss;
 use Drupal\Core\Url;
 use Drupal\Core\Asset\AttachedAssetsInterface;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Routing\RouteMatchInterface;
-use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\language\ConfigurableLanguageInterface;
 use Drupal\Component\Utility\Crypt;
diff --git a/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
index 83bdebb7028ea3412b57b463fcbc21315ac92b12..d4776d55f9d12898070cedc0c3ac8d05c639f92e 100644
--- a/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -5,13 +5,9 @@
  * Interface translation summary, editing and deletion user interfaces.
  */
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Url;
 use Drupal\Core\Render\Element;
-use Drupal\locale\SourceString;
-use Drupal\locale\TranslationString;
 use Symfony\Component\HttpFoundation\RedirectResponse;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
  * Page callback: Checks for translation updates and displays the status.
diff --git a/core/modules/locale/src/Controller/LocaleController.php b/core/modules/locale/src/Controller/LocaleController.php
index 0638b08b05363a401c2d53f0e1af6a9d193faf6e..9216296191ee1f255cd60fb42b534808c4adc410 100644
--- a/core/modules/locale/src/Controller/LocaleController.php
+++ b/core/modules/locale/src/Controller/LocaleController.php
@@ -7,7 +7,6 @@
 namespace Drupal\locale\Controller;
 
 use Drupal\Core\Controller\ControllerBase;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
  * Return response for manual check translations.
diff --git a/core/modules/locale/src/Gettext.php b/core/modules/locale/src/Gettext.php
index dfefe906d3e25eafb453f795bcc077316739c8cd..4d5b65ee0d7c51b22aff64e7f070e2938048089a 100644
--- a/core/modules/locale/src/Gettext.php
+++ b/core/modules/locale/src/Gettext.php
@@ -8,8 +8,6 @@
 namespace Drupal\locale;
 
 use Drupal\Component\Gettext\PoStreamReader;
-use Drupal\Component\Gettext\PoMemoryWriter;
-use Drupal\locale\PoDatabaseWriter;
 
 /**
  * Static class providing Drupal specific Gettext functionality.
diff --git a/core/modules/locale/src/LocaleConfigManager.php b/core/modules/locale/src/LocaleConfigManager.php
index 1312f6d40f49125dbb9569a54571d55f1f3e0ddc..cab88166131d56cb620be39609d254d2fb83df9c 100644
--- a/core/modules/locale/src/LocaleConfigManager.php
+++ b/core/modules/locale/src/LocaleConfigManager.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Config\ConfigFactoryInterface;
-use Drupal\Core\Config\InstallStorage;
 use Drupal\Core\Config\StorageInterface;
 use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
diff --git a/core/modules/locale/src/PoDatabaseReader.php b/core/modules/locale/src/PoDatabaseReader.php
index 7e7519eb7994c1f4f5f89e0545b4d1359f160e5a..86bf655714623fff3b37981f470c21d24d8a8276 100644
--- a/core/modules/locale/src/PoDatabaseReader.php
+++ b/core/modules/locale/src/PoDatabaseReader.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Gettext\PoHeader;
 use Drupal\Component\Gettext\PoItem;
 use Drupal\Component\Gettext\PoReaderInterface;
-use Drupal\locale\TranslationString;
 
 /**
  * Gettext PO reader working with the locale module database.
diff --git a/core/modules/locale/src/PoDatabaseWriter.php b/core/modules/locale/src/PoDatabaseWriter.php
index 27b9b78c00cbb4748c6736e7aecbd53faecdc795..c79944c1af8d07b914207c9db06ab7030a916809 100644
--- a/core/modules/locale/src/PoDatabaseWriter.php
+++ b/core/modules/locale/src/PoDatabaseWriter.php
@@ -11,8 +11,6 @@
 use Drupal\Component\Gettext\PoItem;
 use Drupal\Component\Gettext\PoReaderInterface;
 use Drupal\Component\Gettext\PoWriterInterface;
-use Drupal\locale\SourceString;
-use Drupal\locale\TranslationString;
 
 /**
  * Gettext PO writer working with the locale module database.
diff --git a/core/modules/locale/src/StreamWrapper/TranslationsStream.php b/core/modules/locale/src/StreamWrapper/TranslationsStream.php
index eaa712236a97e6eedc6c7c5e237da1efbc7a16f7..7866ad9d722e98e5cdb177bc59a59e24ab4eab50 100644
--- a/core/modules/locale/src/StreamWrapper/TranslationsStream.php
+++ b/core/modules/locale/src/StreamWrapper/TranslationsStream.php
@@ -8,7 +8,6 @@
 namespace Drupal\locale\StreamWrapper;
 
 use Drupal\Core\Annotation\StreamWrapper;
-use Drupal\Core\Annotation\Translation;
 use Drupal\Core\StreamWrapper\LocalStream;
 use Drupal\Core\StreamWrapper\StreamWrapperInterface;
 
diff --git a/core/modules/locale/src/StringBase.php b/core/modules/locale/src/StringBase.php
index d0340ef0197145a7e14dd52c5fe0f9ed5f906da5..8113c1ff0becb89867dcc244c3f57b3ed0d1fcf2 100644
--- a/core/modules/locale/src/StringBase.php
+++ b/core/modules/locale/src/StringBase.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\locale;
 
-use Drupal\Component\Utility\SafeMarkup;
-
 /**
  * Defines the locale string base class.
  *
diff --git a/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php b/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php
index 6605b3b5778e8be31a1bb8ea8859740d7d643f1e..b0450e55b4dabe6e7deecc0f284f0651a48c6a71 100644
--- a/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php
+++ b/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php
@@ -10,7 +10,6 @@
 use Drupal\locale\Locale;
 use Drupal\simpletest\WebTestBase;
 use Drupal\language\Entity\ConfigurableLanguage;
-use Drupal\Core\Url;
 
 /**
  * Tests translation update's effects on configuration translations.
diff --git a/core/modules/locale/src/Tests/LocaleConfigTranslationTest.php b/core/modules/locale/src/Tests/LocaleConfigTranslationTest.php
index 588e779f2f800049e0233a58fc9d9d9eb15e0c08..e03f061b5f76bfbb65c48bf0ec1a55ea44763d11 100644
--- a/core/modules/locale/src/Tests/LocaleConfigTranslationTest.php
+++ b/core/modules/locale/src/Tests/LocaleConfigTranslationTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\locale\Tests;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\simpletest\WebTestBase;
 use Drupal\core\language\languageInterface;
 
diff --git a/core/modules/locale/src/Tests/LocaleUpdateBase.php b/core/modules/locale/src/Tests/LocaleUpdateBase.php
index 5b03e9539a671a83205adf3056328ad252a23c4b..41922bbc4f1a2339446ee11531bf9763ce986d28 100644
--- a/core/modules/locale/src/Tests/LocaleUpdateBase.php
+++ b/core/modules/locale/src/Tests/LocaleUpdateBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\locale\Tests;
 
 use Drupal\Core\StreamWrapper\PublicStream;
-use Drupal\Core\Url;
 use Drupal\simpletest\WebTestBase;
 use Drupal\Component\Utility\SafeMarkup;
 
diff --git a/core/modules/menu_link_content/src/Tests/LinksTest.php b/core/modules/menu_link_content/src/Tests/LinksTest.php
index 81d48a456933c50ab1712508f92be45683bef701..29a8d9715ca8130ca5bf5dfb47cad388c105ae05 100644
--- a/core/modules/menu_link_content/src/Tests/LinksTest.php
+++ b/core/modules/menu_link_content/src/Tests/LinksTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\menu_link_content\Tests;
 
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\locale\TranslationString;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/menu_ui/menu_ui.module b/core/modules/menu_ui/menu_ui.module
index 6f31eb585deb3285013c585611b167118ace70b6..3baf11719937868f131e4aefb3bccc4b5039ad53 100644
--- a/core/modules/menu_ui/menu_ui.module
+++ b/core/modules/menu_ui/menu_ui.module
@@ -20,7 +20,6 @@
 use Drupal\menu_link_content\Entity\MenuLinkContent;
 use Drupal\node\NodeTypeInterface;
 use Drupal\system\Entity\Menu;
-use Symfony\Component\HttpFoundation\JsonResponse;
 use Drupal\node\NodeInterface;
 
 /**
diff --git a/core/modules/menu_ui/src/MenuForm.php b/core/modules/menu_ui/src/MenuForm.php
index efd1451717b1aba4464e11823bbe62ed09331ddd..0932cdb052e8bc8ce74fcd57f17c20bff6c84b5e 100644
--- a/core/modules/menu_ui/src/MenuForm.php
+++ b/core/modules/menu_ui/src/MenuForm.php
@@ -19,7 +19,6 @@
 use Drupal\Core\Menu\MenuLinkTreeInterface;
 use Drupal\Core\Menu\MenuTreeParameters;
 use Drupal\Core\Render\Element;
-use Drupal\Core\Routing\UrlGeneratorTrait;
 use Drupal\Core\Url;
 use Drupal\Core\Utility\LinkGeneratorInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
diff --git a/core/modules/menu_ui/src/MenuListBuilder.php b/core/modules/menu_ui/src/MenuListBuilder.php
index be9fc1ec7be2cb2c04e18f6950157cb2acfa9cc3..406a60f022d8282468b8e1bed539f6730661ccb2 100644
--- a/core/modules/menu_ui/src/MenuListBuilder.php
+++ b/core/modules/menu_ui/src/MenuListBuilder.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\menu_ui;
 
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
 use Drupal\Core\Entity\EntityInterface;
 
diff --git a/core/modules/menu_ui/src/Tests/MenuLanguageTest.php b/core/modules/menu_ui/src/Tests/MenuLanguageTest.php
index c35c221e24c6d43b2a6c634731c46b3382d5ba5b..b204e47c9cd946852e299635f249610854deb4b8 100644
--- a/core/modules/menu_ui/src/Tests/MenuLanguageTest.php
+++ b/core/modules/menu_ui/src/Tests/MenuLanguageTest.php
@@ -12,7 +12,6 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\language\Entity\ContentLanguageSettings;
-use Drupal\system\Entity\Menu;
 
 /**
  * Create menu and menu links in non-English language, and edit language
diff --git a/core/modules/menu_ui/src/Tests/MenuTest.php b/core/modules/menu_ui/src/Tests/MenuTest.php
index 326db813c0f7d5ceb3b7a3db94472a282f7b92d8..f8c26c9038badf973f23d9a88fdc1c9e26ed23ef 100644
--- a/core/modules/menu_ui/src/Tests/MenuTest.php
+++ b/core/modules/menu_ui/src/Tests/MenuTest.php
@@ -10,7 +10,6 @@
 use Drupal\block\Entity\Block;
 use Drupal\Component\Serialization\Json;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Menu\MenuLinkInterface;
 use Drupal\Core\Url;
 use Drupal\menu_link_content\Entity\MenuLinkContent;
diff --git a/core/modules/migrate/src/Plugin/migrate/destination/EntityFieldInstance.php b/core/modules/migrate/src/Plugin/migrate/destination/EntityFieldInstance.php
index 77297e8a0c7281bb7b5d8e0404e5422bbe927238..c6cd7e4677381d5777d4fded47025a91285568b8 100644
--- a/core/modules/migrate/src/Plugin/migrate/destination/EntityFieldInstance.php
+++ b/core/modules/migrate/src/Plugin/migrate/destination/EntityFieldInstance.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\migrate\Plugin\migrate\destination;
 
-use Drupal\migrate\Row;
-
 /**
  * @MigrateDestination(
  *   id = "entity:field_config"
diff --git a/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php b/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
index bc7a8544a3a910d4ba7e247828334708f3aa113a..a7e3e89b9bb5a228df3260b1445e71ce42c61ced 100644
--- a/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Plugin\PluginBase;
 use Drupal\migrate\Entity\MigrationInterface;
 use Drupal\migrate\MigrateException;
-use Drupal\migrate\MigrateExecutableInterface;
 use Drupal\migrate\MigrateSkipRowException;
 use Drupal\migrate\Plugin\MigrateIdMapInterface;
 use Drupal\migrate\Plugin\MigrateSourceInterface;
diff --git a/core/modules/migrate/src/Tests/MigrateTestBase.php b/core/modules/migrate/src/Tests/MigrateTestBase.php
index 248a059d21e7df6e5a6865d4607705d76b8b90c0..1fda38363099f8d7493492129626a1ba639a8e15 100644
--- a/core/modules/migrate/src/Tests/MigrateTestBase.php
+++ b/core/modules/migrate/src/Tests/MigrateTestBase.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Database\Database;
 use Drupal\migrate\Entity\Migration;
-use Drupal\migrate\Entity\MigrationInterface;
 use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate\MigrateMessageInterface;
 use Drupal\migrate\Row;
diff --git a/core/modules/migrate/tests/src/Unit/process/GetTest.php b/core/modules/migrate/tests/src/Unit/process/GetTest.php
index bdcf27c4364f8718ac86ab01239bade61305cac6..dc8ea70a850ee10783a0cf751ea20a023ef0600f 100644
--- a/core/modules/migrate/tests/src/Unit/process/GetTest.php
+++ b/core/modules/migrate/tests/src/Unit/process/GetTest.php
@@ -7,7 +7,6 @@
 namespace Drupal\Tests\migrate\Unit\process;
 
 use Drupal\migrate\Plugin\migrate\process\TestGet;
-use Drupal\migrate\Row;
 
 /**
  * Tests the get process plugin.
diff --git a/core/modules/migrate/tests/src/Unit/process/IteratorTest.php b/core/modules/migrate/tests/src/Unit/process/IteratorTest.php
index 69e707d4ca8072bedb2cbbd8cece2db3006ce018..fe34095de9298bcadd4d02d21c31ed5d9a193d4e 100644
--- a/core/modules/migrate/tests/src/Unit/process/IteratorTest.php
+++ b/core/modules/migrate/tests/src/Unit/process/IteratorTest.php
@@ -9,7 +9,6 @@
 use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate\Plugin\migrate\process\Get;
 use Drupal\migrate\Plugin\migrate\process\Iterator;
-use Drupal\migrate\Plugin\migrate\process\StaticMap;
 use Drupal\migrate\Row;
 use Drupal\Tests\migrate\Unit\MigrateTestCase;
 
diff --git a/core/modules/node/node.admin.inc b/core/modules/node/node.admin.inc
index 280fd81c8ac1c5cbf604f5c35d34a27e2c486c4f..55665662be7c6c9e87771c5669d09138fffdf31f 100644
--- a/core/modules/node/node.admin.inc
+++ b/core/modules/node/node.admin.inc
@@ -5,7 +5,6 @@
  * Content administration and module settings user interface.
  */
 
-use Drupal\Core\Language\Language;
 use Drupal\node\NodeInterface;
 use Drupal\node\Entity\Node;
 
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index 0eaab5d95e870b2a918f88900d9f8e655f768090..182def19fe03d781ba1e873a454ea825d5a8e7cc 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -8,7 +8,6 @@
  * API pattern.
  */
 
-use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Xss;
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Cache\Cache;
diff --git a/core/modules/node/node.views.inc b/core/modules/node/node.views.inc
index 511d72ef2b2172a9eea7fe3fc7fa59ce9c2798b8..e353fc07dffccc0cd23429f14b8b0cd1ab6e58be 100644
--- a/core/modules/node/node.views.inc
+++ b/core/modules/node/node.views.inc
@@ -5,9 +5,6 @@
  * Provide views data for node.module.
  */
 
-use Drupal\views\Analyzer;
-use Drupal\views\ViewExecutable;
-
 /**
  * Implements hook_views_wizard().
  */
diff --git a/core/modules/node/src/Controller/NodeViewController.php b/core/modules/node/src/Controller/NodeViewController.php
index fc43770f7993b97b77d2b95c471fa854c57d9d06..ee84e6bbaa78c4103c482d70a0c93ed671db09b7 100644
--- a/core/modules/node/src/Controller/NodeViewController.php
+++ b/core/modules/node/src/Controller/NodeViewController.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\node\Controller;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\Controller\EntityViewController;
 
diff --git a/core/modules/node/src/Form/NodeRevisionDeleteForm.php b/core/modules/node/src/Form/NodeRevisionDeleteForm.php
index 352cef0bfad50b011c0ce4991593bed475f436f5..6780e247275bd39e16e6630b1d98f3f47e595ac6 100644
--- a/core/modules/node/src/Form/NodeRevisionDeleteForm.php
+++ b/core/modules/node/src/Form/NodeRevisionDeleteForm.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Form\ConfirmFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
-use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/node/src/NodeForm.php b/core/modules/node/src/NodeForm.php
index 36cfc74c504fa005831ad6688e0f53d9bbe23974..bb6c49d728fb6ab5cca3a129686f83f089384435 100644
--- a/core/modules/node/src/NodeForm.php
+++ b/core/modules/node/src/NodeForm.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Entity\ContentEntityForm;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\user\Entity\User;
 use Drupal\user\PrivateTempStoreFactory;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/node/src/NodeGrantDatabaseStorage.php b/core/modules/node/src/NodeGrantDatabaseStorage.php
index f6c56dbd4b07351162219d168f2900a9727a42d1..6b6f2806a211c69aee63226f574edc007646a217 100644
--- a/core/modules/node/src/NodeGrantDatabaseStorage.php
+++ b/core/modules/node/src/NodeGrantDatabaseStorage.php
@@ -11,12 +11,9 @@
 use Drupal\Core\Database\Connection;
 use Drupal\Core\Database\Query\SelectInterface;
 use Drupal\Core\Database\Query\Condition;
-use Drupal\Core\Entity\ContentEntityBase;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\user\Entity\User;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Defines a controller class that handles the node grants system.
diff --git a/core/modules/node/src/NodeInterface.php b/core/modules/node/src/NodeInterface.php
index 839c3d2cb424a162ece94299b0cbc84ee0bcfa90..241fb1ae76b272c23f0b4a0b481df1b2a67f39d8 100644
--- a/core/modules/node/src/NodeInterface.php
+++ b/core/modules/node/src/NodeInterface.php
@@ -10,7 +10,6 @@
 use Drupal\user\EntityOwnerInterface;
 use Drupal\Core\Entity\EntityChangedInterface;
 use Drupal\Core\Entity\ContentEntityInterface;
-use Drupal\user\UserInterface;
 
 /**
  * Provides an interface defining a node entity.
diff --git a/core/modules/node/src/NodeViewBuilder.php b/core/modules/node/src/NodeViewBuilder.php
index dd7c04566e4d192b686746145fa9359b229b2ccb..1ee05f6afe22161ea95a481d8a55a2706b145847 100644
--- a/core/modules/node/src/NodeViewBuilder.php
+++ b/core/modules/node/src/NodeViewBuilder.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityViewBuilder;
 use Drupal\node\Entity\Node;
-use Drupal\user\Entity\User;
 
 /**
  * Render controller for nodes.
diff --git a/core/modules/node/src/ParamConverter/NodePreviewConverter.php b/core/modules/node/src/ParamConverter/NodePreviewConverter.php
index 6746fae269c3d26a41d805056c271be46a77bc23..adbf2afb2e9f3fb16bfbb064cba91fd040027614 100644
--- a/core/modules/node/src/ParamConverter/NodePreviewConverter.php
+++ b/core/modules/node/src/ParamConverter/NodePreviewConverter.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\node\ParamConverter;
 
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\user\PrivateTempStoreFactory;
 use Symfony\Component\Routing\Route;
 use Drupal\Core\ParamConverter\ParamConverterInterface;
diff --git a/core/modules/node/src/Plugin/Block/SyndicateBlock.php b/core/modules/node/src/Plugin/Block/SyndicateBlock.php
index 1e40332e0690785ed182e94b96e4cff33f840a24..c72389612fedcb26212fd5f1b7384b6a4e0fd9bd 100644
--- a/core/modules/node/src/Plugin/Block/SyndicateBlock.php
+++ b/core/modules/node/src/Plugin/Block/SyndicateBlock.php
@@ -9,8 +9,6 @@
 
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Block\BlockBase;
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Session\AccountInterface;
 
 /**
diff --git a/core/modules/node/src/Plugin/views/field/NodeBulkForm.php b/core/modules/node/src/Plugin/views/field/NodeBulkForm.php
index 1f8a247c217acaf2efd3b1e67739e4e14fc089db..5f8e04ee8d0864c4863d9e6d9ff970215a81bb1c 100644
--- a/core/modules/node/src/Plugin/views/field/NodeBulkForm.php
+++ b/core/modules/node/src/Plugin/views/field/NodeBulkForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\node\Plugin\views\field;
 
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\system\Plugin\views\field\BulkForm;
 
 /**
diff --git a/core/modules/node/src/Plugin/views/row/Rss.php b/core/modules/node/src/Plugin/views/row/Rss.php
index 2967ccecaa9676c5e4c286b158b1581fd191ef09..ae2b8712d51f745d1911741fe7994da1cd5a182b 100644
--- a/core/modules/node/src/Plugin/views/row/Rss.php
+++ b/core/modules/node/src/Plugin/views/row/Rss.php
@@ -9,8 +9,6 @@
 
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\views\Plugin\views\row\RssPluginBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Drupal\node\NodeStorageInterface;
 
 /**
  * Plugin which performs a node_view on the resulting object
diff --git a/core/modules/node/src/Tests/Migrate/d6/MigrateNodeRevisionTest.php b/core/modules/node/src/Tests/Migrate/d6/MigrateNodeRevisionTest.php
index 73d55a31da95b04f46f2c6d5617c8867f26b250f..b8ee0c2aec4b8ce456b35f9ba151801e5a1d2325 100644
--- a/core/modules/node/src/Tests/Migrate/d6/MigrateNodeRevisionTest.php
+++ b/core/modules/node/src/Tests/Migrate/d6/MigrateNodeRevisionTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\node\Tests\Migrate\d6;
 
-use Drupal\migrate\Entity\Migration;
-
 /**
  * Node content revisions migration.
  *
diff --git a/core/modules/node/src/Tests/Migrate/d6/MigrateNodeTestBase.php b/core/modules/node/src/Tests/Migrate/d6/MigrateNodeTestBase.php
index 9bf182eeef909ef07c49c9380031f7fc550db362..f88fba27fbc407ae7f398666259acc064044c2ea 100644
--- a/core/modules/node/src/Tests/Migrate/d6/MigrateNodeTestBase.php
+++ b/core/modules/node/src/Tests/Migrate/d6/MigrateNodeTestBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\node\Tests\Migrate\d6;
 
-use Drupal\migrate\Entity\MigrationInterface;
 use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
 use Drupal\user\Entity\User;
 
diff --git a/core/modules/node/src/Tests/NodeBodyFieldStorageTest.php b/core/modules/node/src/Tests/NodeBodyFieldStorageTest.php
index 33aa98ef8d0b57f0068745d097e072aaa9225521..ddf7559f4e27ba8e8c351d01484977da41e583b4 100644
--- a/core/modules/node/src/Tests/NodeBodyFieldStorageTest.php
+++ b/core/modules/node/src/Tests/NodeBodyFieldStorageTest.php
@@ -7,13 +7,10 @@
 
 namespace Drupal\node\Tests;
 
-use Drupal\Core\Field\Entity\BaseFieldOverride;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\field\Entity\FieldStorageConfig;
-use Drupal\node\Entity\Node;
 use Drupal\node\Entity\NodeType;
 use Drupal\simpletest\KernelTestBase;
-use Drupal\system\Tests\Entity\EntityUnitTestBase;
 
 /**
  * Tests node body field storage.
diff --git a/core/modules/node/src/Tests/NodeCacheTagsTest.php b/core/modules/node/src/Tests/NodeCacheTagsTest.php
index 8144ba283bb7a85a5969050f52804d34a01d0e7b..5940d4c5e50c6b94fb95c4960e45885656c0af05 100644
--- a/core/modules/node/src/Tests/NodeCacheTagsTest.php
+++ b/core/modules/node/src/Tests/NodeCacheTagsTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\system\Tests\Entity\EntityWithUriCacheTagsTestBase;
-use Drupal\user\Entity\Role;
 
 /**
  * Tests the Node entity's cache tags.
diff --git a/core/modules/node/src/Tests/Views/NodeFieldTokensTest.php b/core/modules/node/src/Tests/Views/NodeFieldTokensTest.php
index 3aef9b22b0d64b4d3dcefafe8d8f13714afd3056..16a52bf7c15732ba4bccace15d65e2ade1f9a1d5 100644
--- a/core/modules/node/src/Tests/Views/NodeFieldTokensTest.php
+++ b/core/modules/node/src/Tests/Views/NodeFieldTokensTest.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\node\Tests\Views;
 
-use Drupal\views\Views;
-use Drupal\node\Tests\Views\NodeTestBase;
-
 /**
  * Tests replacement of Views tokens supplied by the Node module.
  *
diff --git a/core/modules/options/src/Plugin/views/argument/StringListField.php b/core/modules/options/src/Plugin/views/argument/StringListField.php
index ee26d43b5146e093ab2e1f1095a9c0886bd1e000..abd02e40faf987ec00e943f8277e75468015810d 100644
--- a/core/modules/options/src/Plugin/views/argument/StringListField.php
+++ b/core/modules/options/src/Plugin/views/argument/StringListField.php
@@ -14,7 +14,6 @@
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\argument\StringArgument;
-use Drupal\Component\Utility\SafeMarkup;
 
 /**
  * Argument handler for list field to show the human readable name in summary.
diff --git a/core/modules/options/src/Tests/Views/OptionsTestBase.php b/core/modules/options/src/Tests/Views/OptionsTestBase.php
index b204d1bb5056b59798d504f8422d4b9c2e26e09b..972c00badf9fb16071f54b57513e4d864d15dc40 100644
--- a/core/modules/options/src/Tests/Views/OptionsTestBase.php
+++ b/core/modules/options/src/Tests/Views/OptionsTestBase.php
@@ -11,7 +11,6 @@
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\node\Entity\Node;
 use Drupal\node\Entity\NodeType;
-use Drupal\views\Tests\ViewTestBase;
 use Drupal\views\Tests\ViewTestData;
 use Drupal\views\Tests\ViewKernelTestBase;
 
diff --git a/core/modules/page_cache/src/StackMiddleware/PageCache.php b/core/modules/page_cache/src/StackMiddleware/PageCache.php
index 1629c14c331a3e024f3e2b3fb90af6f00357929f..23ddb8447671472c34a87856ab50c20565dff401 100644
--- a/core/modules/page_cache/src/StackMiddleware/PageCache.php
+++ b/core/modules/page_cache/src/StackMiddleware/PageCache.php
@@ -7,12 +7,10 @@
 
 namespace Drupal\page_cache\StackMiddleware;
 
-use Drupal\Component\Utility\UserAgent;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\PageCache\RequestPolicyInterface;
 use Drupal\Core\PageCache\ResponsePolicyInterface;
-use Drupal\Core\Site\Settings;
 use Symfony\Component\HttpFoundation\BinaryFileResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
diff --git a/core/modules/quickedit/src/MetadataGenerator.php b/core/modules/quickedit/src/MetadataGenerator.php
index 1de5fc64c0458c3f404920d25bdb81f5a3253f6f..289ad53eb734e3a6b95402f2bf6cfdd869aa996f 100644
--- a/core/modules/quickedit/src/MetadataGenerator.php
+++ b/core/modules/quickedit/src/MetadataGenerator.php
@@ -8,7 +8,6 @@
 namespace Drupal\quickedit;
 
 use Drupal\Component\Plugin\PluginManagerInterface;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\quickedit\Access\EditEntityFieldAccessCheckInterface;
diff --git a/core/modules/quickedit/src/Tests/MetadataGeneratorTest.php b/core/modules/quickedit/src/Tests/MetadataGeneratorTest.php
index 0cf21e0c07a89c17e61c0527891a59fe9805a10a..033570323016ebd9404efc8a0679aaa43c7330d8 100644
--- a/core/modules/quickedit/src/Tests/MetadataGeneratorTest.php
+++ b/core/modules/quickedit/src/Tests/MetadataGeneratorTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\quickedit\EditorSelector;
 use Drupal\quickedit\MetadataGenerator;
-use Drupal\quickedit\Plugin\InPlaceEditorManager;
 use Drupal\quickedit_test\MockEditEntityFieldAccessCheck;
 
 /**
diff --git a/core/modules/quickedit/tests/modules/quickedit_test.module b/core/modules/quickedit/tests/modules/quickedit_test.module
index 4a1a2ef31a3b8ecab6ddc4587092074e98c3e79f..39c4f041c578528032d9c8d687adfc571c55b854 100644
--- a/core/modules/quickedit/tests/modules/quickedit_test.module
+++ b/core/modules/quickedit/tests/modules/quickedit_test.module
@@ -6,8 +6,6 @@
  */
 
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Implements hook_quickedit_render_field().
diff --git a/core/modules/rdf/src/Tests/Field/DateTimeFieldRdfaTest.php b/core/modules/rdf/src/Tests/Field/DateTimeFieldRdfaTest.php
index 337644e954033b436cebe16b0a9f218618fef108..1b47b404b2a0d0b735f330373a95b252c632d2ec 100644
--- a/core/modules/rdf/src/Tests/Field/DateTimeFieldRdfaTest.php
+++ b/core/modules/rdf/src/Tests/Field/DateTimeFieldRdfaTest.php
@@ -6,8 +6,6 @@
 
 namespace Drupal\rdf\Tests\Field;
 
-use Drupal\rdf\Tests\Field\FieldRdfaTestBase;
-
 /**
  * Tests RDFa output by datetime field formatters.
  *
diff --git a/core/modules/rdf/src/Tests/Field/EmailFieldRdfaTest.php b/core/modules/rdf/src/Tests/Field/EmailFieldRdfaTest.php
index a5067fc74e01c3b9d5f5ea99173b04126657e606..cda7ee7f61a6e114fa382c7bcbd991046e23791c 100644
--- a/core/modules/rdf/src/Tests/Field/EmailFieldRdfaTest.php
+++ b/core/modules/rdf/src/Tests/Field/EmailFieldRdfaTest.php
@@ -6,8 +6,6 @@
 
 namespace Drupal\rdf\Tests\Field;
 
-use Drupal\rdf\Tests\Field\FieldRdfaTestBase;
-
 /**
  * Tests RDFa output by email field formatters.
  *
diff --git a/core/modules/rdf/src/Tests/Field/LinkFieldRdfaTest.php b/core/modules/rdf/src/Tests/Field/LinkFieldRdfaTest.php
index 4d643d0b110f6e820815e34beabaf99d1303d928..3a58b80da2c4493569b94b15da35e1dd9144f2b8 100644
--- a/core/modules/rdf/src/Tests/Field/LinkFieldRdfaTest.php
+++ b/core/modules/rdf/src/Tests/Field/LinkFieldRdfaTest.php
@@ -6,9 +6,6 @@
 
 namespace Drupal\rdf\Tests\Field;
 
-use Drupal\Component\Utility\Unicode;
-use Drupal\rdf\Tests\Field\FieldRdfaTestBase;
-
 /**
  * Tests the placement of RDFa in link field formatters.
  *
diff --git a/core/modules/rdf/src/Tests/Field/TextFieldRdfaTest.php b/core/modules/rdf/src/Tests/Field/TextFieldRdfaTest.php
index b54bd7305ca533a5e77efd03bfd6960c783dae6b..0e97b272257d8fd953df6150ad2419ad7e220454 100644
--- a/core/modules/rdf/src/Tests/Field/TextFieldRdfaTest.php
+++ b/core/modules/rdf/src/Tests/Field/TextFieldRdfaTest.php
@@ -6,8 +6,6 @@
 
 namespace Drupal\rdf\Tests\Field;
 
-use Drupal\rdf\Tests\Field\FieldRdfaTestBase;
-
 /**
  * Tests RDFa output by text field formatters.
  *
diff --git a/core/modules/responsive_image/responsive_image.module b/core/modules/responsive_image/responsive_image.module
index 80604989666f82433ecaed4ed09ad6b3b1fbb258..af87c5bfa5e61ecd9388ef30c404910f4cc21466 100644
--- a/core/modules/responsive_image/responsive_image.module
+++ b/core/modules/responsive_image/responsive_image.module
@@ -7,9 +7,7 @@
 
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Routing\RouteMatchInterface;
-use \Drupal\Core\Template\Attribute;
 use Drupal\image\Entity\ImageStyle;
-use Drupal\Core\Url;
 use Drupal\responsive_image\Entity\ResponsiveImageStyle;
 use Drupal\Core\Image\ImageInterface;
 use Drupal\breakpoint\BreakpointInterface;
diff --git a/core/modules/rest/src/LinkManager/LinkManagerBase.php b/core/modules/rest/src/LinkManager/LinkManagerBase.php
index f93f6fdd567ea71615f61f917d847ac20305e286..82bce0bc896709c6ee10538fbafeb5595db5e86c 100644
--- a/core/modules/rest/src/LinkManager/LinkManagerBase.php
+++ b/core/modules/rest/src/LinkManager/LinkManagerBase.php
@@ -6,7 +6,6 @@
  */
 
 namespace Drupal\rest\LinkManager;
-use Drupal\Core\Url;
 
 /**
  * Defines an abstract base-class for REST link manager objects.
diff --git a/core/modules/rest/src/Plugin/ResourceBase.php b/core/modules/rest/src/Plugin/ResourceBase.php
index 5f8065e11a5cc50ce34ae51a747d70516cda78a8..5506f0096165c3c050cd164dcb3ed6a1143a52a0 100644
--- a/core/modules/rest/src/Plugin/ResourceBase.php
+++ b/core/modules/rest/src/Plugin/ResourceBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\rest\Plugin;
 
-use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Plugin\PluginBase;
 use Psr\Log\LoggerInterface;
diff --git a/core/modules/rest/src/Plugin/views/row/DataEntityRow.php b/core/modules/rest/src/Plugin/views/row/DataEntityRow.php
index 1d96d2b3056e821081b87fcd54e04faa4b553765..a8bf139691b5a572b93e7451519183c45826c440 100644
--- a/core/modules/rest/src/Plugin/views/row/DataEntityRow.php
+++ b/core/modules/rest/src/Plugin/views/row/DataEntityRow.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\rest\Plugin\views\row;
 
-use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\row\RowPluginBase;
 
 /**
diff --git a/core/modules/rest/src/Plugin/views/style/Serializer.php b/core/modules/rest/src/Plugin/views/style/Serializer.php
index 895f00cfb44faa971e979d50f4973d9f65a6cb9c..7b8ded90e9f88ac62d9e5f7c106cf259fa431a36 100644
--- a/core/modules/rest/src/Plugin/views/style/Serializer.php
+++ b/core/modules/rest/src/Plugin/views/style/Serializer.php
@@ -10,8 +10,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\ViewExecutable;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\style\StylePluginBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\Serializer\SerializerInterface;
diff --git a/core/modules/rest/src/RequestHandler.php b/core/modules/rest/src/RequestHandler.php
index ee4b890aa8b96cc24c665bdf9bb1f44788d1ebd4..5a04cd88bd60018b874bfb243a1ccb0427acba1d 100644
--- a/core/modules/rest/src/RequestHandler.php
+++ b/core/modules/rest/src/RequestHandler.php
@@ -14,7 +14,6 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\HttpException;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\HttpKernel\Exception\UnsupportedMediaTypeHttpException;
 use Symfony\Component\Serializer\Exception\UnexpectedValueException;
 
diff --git a/core/modules/rest/src/Routing/ResourceRoutes.php b/core/modules/rest/src/Routing/ResourceRoutes.php
index f975f27737229b13b065188e35bdd961dfb33af0..b6f94e3b448632af341549d8296c2076645a3d03 100644
--- a/core/modules/rest/src/Routing/ResourceRoutes.php
+++ b/core/modules/rest/src/Routing/ResourceRoutes.php
@@ -8,12 +8,9 @@
 namespace Drupal\rest\Routing;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
-use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Drupal\Core\Routing\RouteSubscriberBase;
 use Drupal\rest\Plugin\Type\ResourcePluginManager;
 use Psr\Log\LoggerInterface;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Routing\RouteCollection;
 
 /**
diff --git a/core/modules/rest/src/Tests/AuthTest.php b/core/modules/rest/src/Tests/AuthTest.php
index 8d4601a093fbd0afbe1f8a1ea91049c0763654e4..ab0b3b1eca6add7d7b9a13fdb667ea25df021524 100644
--- a/core/modules/rest/src/Tests/AuthTest.php
+++ b/core/modules/rest/src/Tests/AuthTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\rest\Tests;
 
 use Drupal\Core\Url;
-use Drupal\rest\Tests\RESTTestBase;
 
 /**
  * Tests authentication provider restrictions.
diff --git a/core/modules/rest/src/Tests/RESTTestBase.php b/core/modules/rest/src/Tests/RESTTestBase.php
index b6eb46a7716f6c3e867bd13b2f04fafbf5522149..db7d1236e2ed1164ae83afa80a623236b410a42a 100644
--- a/core/modules/rest/src/Tests/RESTTestBase.php
+++ b/core/modules/rest/src/Tests/RESTTestBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\rest\Tests;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\node\NodeInterface;
 use Drupal\simpletest\WebTestBase;
 
diff --git a/core/modules/rest/src/Tests/ReadTest.php b/core/modules/rest/src/Tests/ReadTest.php
index c59d64f687f8aa1bd7c03be955e63c83b3bb4ed1..eb3f22295457228f1042b1e1568b184397642b59 100644
--- a/core/modules/rest/src/Tests/ReadTest.php
+++ b/core/modules/rest/src/Tests/ReadTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Serialization\Json;
 use Drupal\Core\Url;
-use Drupal\rest\Tests\RESTTestBase;
 
 /**
  * Tests the retrieval of resources.
diff --git a/core/modules/rest/src/Tests/UpdateTest.php b/core/modules/rest/src/Tests/UpdateTest.php
index 2081012d4944f9f97a3f9ed5cec4f56b2412af93..a15d8f78539b9887840872436cb01faca73e40f9 100644
--- a/core/modules/rest/src/Tests/UpdateTest.php
+++ b/core/modules/rest/src/Tests/UpdateTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\rest\Tests;
 
 use Drupal\Component\Serialization\Json;
-use Drupal\rest\Tests\RESTTestBase;
 
 /**
  * Tests the update of resources.
diff --git a/core/modules/rest/src/Tests/Views/StyleSerializerTest.php b/core/modules/rest/src/Tests/Views/StyleSerializerTest.php
index 8fdbec46d7b5d7ddf776358c5bd1121823a7032a..5f378ee2f67f5b2c6fb49ec5159c9054c6a2fdeb 100644
--- a/core/modules/rest/src/Tests/Views/StyleSerializerTest.php
+++ b/core/modules/rest/src/Tests/Views/StyleSerializerTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\rest\Tests\Views;
 
-use Drupal\Component\Utility\Html;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\entity_test\Entity\EntityTest;
diff --git a/core/modules/search/src/Controller/SearchController.php b/core/modules/search/src/Controller/SearchController.php
index f108bcdaac0da232ed15310f903a59498321e4aa..08932593e36f3d73c1443ab9b348c3d6824c4c43 100644
--- a/core/modules/search/src/Controller/SearchController.php
+++ b/core/modules/search/src/Controller/SearchController.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\search\Controller;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheableDependencyInterface;
-use Drupal\Core\Config\ConfigFactory;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Render\RendererInterface;
 use Drupal\search\SearchPageInterface;
diff --git a/core/modules/search/src/Entity/SearchPage.php b/core/modules/search/src/Entity/SearchPage.php
index 8991cde91cc2e72ab65dc216a898bfbd725b9c88..e2c21bb721f92591419dd86414064ae14dbcf960 100644
--- a/core/modules/search/src/Entity/SearchPage.php
+++ b/core/modules/search/src/Entity/SearchPage.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Config\Entity\ConfigEntityInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
-use Drupal\Component\Plugin\ConfigurablePluginInterface;
 use Drupal\Core\Entity\EntityWithPluginCollectionInterface;
 use Drupal\search\Plugin\SearchIndexingInterface;
 use Drupal\search\Plugin\SearchPluginCollection;
diff --git a/core/modules/search/src/Plugin/Block/SearchBlock.php b/core/modules/search/src/Plugin/Block/SearchBlock.php
index 955929148bafa50dac17141b3f579b4d76d00f29..799a9c54205493f146bf15c5c2798dee687db297 100644
--- a/core/modules/search/src/Plugin/Block/SearchBlock.php
+++ b/core/modules/search/src/Plugin/Block/SearchBlock.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Block\BlockBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides a 'Search form' block.
diff --git a/core/modules/search/src/SearchQuery.php b/core/modules/search/src/SearchQuery.php
index 164aa3b18b5f9662fba1bd8ef36a917c035cc252..cf66820e25e8cc3cd4e8f5000f36b95d9e7127cd 100644
--- a/core/modules/search/src/SearchQuery.php
+++ b/core/modules/search/src/SearchQuery.php
@@ -12,7 +12,6 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Database\Query\SelectExtender;
 use Drupal\Core\Database\Query\SelectInterface;
-use Drupal\Core\Database\StatementEmpty;
 
 /**
  * Performs a query on the full-text search index for a word or words.
diff --git a/core/modules/serialization/src/Normalizer/ComplexDataNormalizer.php b/core/modules/serialization/src/Normalizer/ComplexDataNormalizer.php
index a2c96979d8fe8029a8de9459af4bbd70544286e4..00774133f1910bc2d49f73e65c054ace95575c39 100644
--- a/core/modules/serialization/src/Normalizer/ComplexDataNormalizer.php
+++ b/core/modules/serialization/src/Normalizer/ComplexDataNormalizer.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\serialization\Normalizer;
 
-use Symfony\Component\Serializer\Exception\RuntimeException;
-
 /**
  * Converts the Drupal entity object structures to a normalized array.
  *
diff --git a/core/modules/serialization/src/Normalizer/ListNormalizer.php b/core/modules/serialization/src/Normalizer/ListNormalizer.php
index 4fc2d00e9e48ccf9b636b100c165b0719bdc6a0e..fed97904a9f964df82cf9aba90a54121a9e9d91e 100644
--- a/core/modules/serialization/src/Normalizer/ListNormalizer.php
+++ b/core/modules/serialization/src/Normalizer/ListNormalizer.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\serialization\Normalizer;
 
-use Symfony\Component\Serializer\Exception\RuntimeException;
-
 /**
  * Converts list objects to arrays.
  *
diff --git a/core/modules/serialization/src/Normalizer/TypedDataNormalizer.php b/core/modules/serialization/src/Normalizer/TypedDataNormalizer.php
index 69f9aeb63f279940f038390438a0cef89dc9428d..ca5524694a037f603e2479d4695da9f77528a953 100644
--- a/core/modules/serialization/src/Normalizer/TypedDataNormalizer.php
+++ b/core/modules/serialization/src/Normalizer/TypedDataNormalizer.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\serialization\Normalizer;
 
-use Symfony\Component\Serializer\Exception\RuntimeException;
-
 /**
  * Converts typed data objects to arrays.
  */
diff --git a/core/modules/serialization/src/Tests/EntitySerializationTest.php b/core/modules/serialization/src/Tests/EntitySerializationTest.php
index 3a9daf84aee788d093f826e0c642715e0ca67632..1dbc51ce0f787ea486db8eb59ae66ddcd6db66e1 100644
--- a/core/modules/serialization/src/Tests/EntitySerializationTest.php
+++ b/core/modules/serialization/src/Tests/EntitySerializationTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\serialization\Tests;
 
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\user\Entity\User;
 
 /**
  * Tests that entities can be serialized to supported core formats.
diff --git a/core/modules/shortcut/src/Controller/ShortcutController.php b/core/modules/shortcut/src/Controller/ShortcutController.php
index 5e4bc68b3d72d1589c90df3e0370d083f917ea5d..f9480f8a72c65af2e0a5eb5842253cedf4e264a8 100644
--- a/core/modules/shortcut/src/Controller/ShortcutController.php
+++ b/core/modules/shortcut/src/Controller/ShortcutController.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\shortcut\ShortcutSetInterface;
 use Drupal\shortcut\ShortcutInterface;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides route responses for taxonomy.module.
diff --git a/core/modules/shortcut/src/Controller/ShortcutSetController.php b/core/modules/shortcut/src/Controller/ShortcutSetController.php
index 6a30d7ca2384db1e7e60d53973cf333adbf0a9d2..56b4f555c7570c82056ba1ba6727a88961c22503 100644
--- a/core/modules/shortcut/src/Controller/ShortcutSetController.php
+++ b/core/modules/shortcut/src/Controller/ShortcutSetController.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Path\PathValidatorInterface;
 use Drupal\shortcut\ShortcutSetInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 
diff --git a/core/modules/shortcut/src/Form/SetCustomize.php b/core/modules/shortcut/src/Form/SetCustomize.php
index 31a574fbc7e73984bb45387eb11ea972cfb6aaa2..44c0b66bb70ffc42b26356d5d75d186d337ec0b8 100644
--- a/core/modules/shortcut/src/Form/SetCustomize.php
+++ b/core/modules/shortcut/src/Form/SetCustomize.php
@@ -8,10 +8,8 @@
 namespace Drupal\shortcut\Form;
 
 use Drupal\Core\Entity\EntityForm;
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Builds the shortcut set customize form.
diff --git a/core/modules/shortcut/src/Form/SwitchShortcutSet.php b/core/modules/shortcut/src/Form/SwitchShortcutSet.php
index 9faa922b7475a29eea3a662741e3f5534c8ae225..e27da6d0f0932a8b5c9ea405806be1e9338bdfeb 100644
--- a/core/modules/shortcut/src/Form/SwitchShortcutSet.php
+++ b/core/modules/shortcut/src/Form/SwitchShortcutSet.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\shortcut\Entity\ShortcutSet;
 use Drupal\shortcut\ShortcutSetStorageInterface;
 use Drupal\user\UserInterface;
diff --git a/core/modules/shortcut/src/Plugin/migrate/destination/EntityShortcutSet.php b/core/modules/shortcut/src/Plugin/migrate/destination/EntityShortcutSet.php
index a63cf6fcca4b749d947bdb362d2d24186569fb35..a33d8cde1b723a4e1351de81a2ce01bcdc68ec23 100644
--- a/core/modules/shortcut/src/Plugin/migrate/destination/EntityShortcutSet.php
+++ b/core/modules/shortcut/src/Plugin/migrate/destination/EntityShortcutSet.php
@@ -8,7 +8,6 @@
 namespace Drupal\shortcut\Plugin\migrate\destination;
 
 use Drupal\migrate\Row;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\migrate\Plugin\migrate\destination\EntityConfigBase;
 
 /**
diff --git a/core/modules/simpletest/simpletest.module b/core/modules/simpletest/simpletest.module
index 57b7f080f0c4677f5c88b1afcd1f26767aed0390..69742cc94c4a60919edbafde58c564ce41c1adda 100644
--- a/core/modules/simpletest/simpletest.module
+++ b/core/modules/simpletest/simpletest.module
@@ -2,7 +2,6 @@
 
 use Drupal\Core\Asset\AttachedAssetsInterface;
 use Drupal\Core\Database\Database;
-use Drupal\Core\Extension\ExtensionDiscovery;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\simpletest\TestBase;
diff --git a/core/modules/simpletest/src/Form/SimpletestResultsForm.php b/core/modules/simpletest/src/Form/SimpletestResultsForm.php
index 58e9d2cd1d6ef3411ae6b40854c134ca75312774..c5bf3522380de391f50a41faa87fc258a42671e3 100644
--- a/core/modules/simpletest/src/Form/SimpletestResultsForm.php
+++ b/core/modules/simpletest/src/Form/SimpletestResultsForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\simpletest\Form;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Database\Connection;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormState;
diff --git a/core/modules/simpletest/src/Form/SimpletestTestForm.php b/core/modules/simpletest/src/Form/SimpletestTestForm.php
index f63e8bed549c290b1cd88b59a07db800e42a3427..c325a8ab5c5358b4051b91a8705c1de934da1355 100644
--- a/core/modules/simpletest/src/Form/SimpletestTestForm.php
+++ b/core/modules/simpletest/src/Form/SimpletestTestForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\simpletest\Form;
 
-use Drupal\Component\Utility\SortArray;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\RendererInterface;
diff --git a/core/modules/simpletest/src/TestBase.php b/core/modules/simpletest/src/TestBase.php
index 22709580fb62cb8c851312b19737a69adc3d6622..940fcbac01346b61c09a01fa8d83773c0d8a9de2 100644
--- a/core/modules/simpletest/src/TestBase.php
+++ b/core/modules/simpletest/src/TestBase.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Utility\Crypt;
-use Drupal\Component\Utility\Random;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Database\Database;
 use Drupal\Core\Config\ConfigImporter;
diff --git a/core/modules/system/src/Controller/SystemController.php b/core/modules/system/src/Controller/SystemController.php
index 8f6b58aa13acb50dddbb76ff74cf9c4f4bd8db6b..84e6ac57cf403017c943d4741841e96cd3e7c0d9 100644
--- a/core/modules/system/src/Controller/SystemController.php
+++ b/core/modules/system/src/Controller/SystemController.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\system\Controller;
 
-use Drupal\Component\Serialization\Json;
 use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Entity\Query\QueryFactory;
diff --git a/core/modules/system/src/Entity/Menu.php b/core/modules/system/src/Entity/Menu.php
index fa738f30998b39bc0f6da8cda7e5a9f967fe657a..df2b08d7a13eb29ae5f1f10a4f68f4b50cc777c9 100644
--- a/core/modules/system/src/Entity/Menu.php
+++ b/core/modules/system/src/Entity/Menu.php
@@ -8,7 +8,6 @@
 namespace Drupal\system\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
-use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\system\MenuInterface;
 
 /**
diff --git a/core/modules/system/src/EventSubscriber/ConfigCacheTag.php b/core/modules/system/src/EventSubscriber/ConfigCacheTag.php
index 7705056bdee23ac00e97c25d5b88b0918a872a76..1df8423a4042e283211327422b3a3825fcc5c14b 100644
--- a/core/modules/system/src/EventSubscriber/ConfigCacheTag.php
+++ b/core/modules/system/src/EventSubscriber/ConfigCacheTag.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\system\EventSubscriber;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
 use Drupal\Core\Config\ConfigCrudEvent;
 use Drupal\Core\Config\ConfigEvents;
diff --git a/core/modules/system/src/Form/ModulesListForm.php b/core/modules/system/src/Form/ModulesListForm.php
index e86ba0a606b13f89b0c8699679234309ed3e5df7..e8a6ceafda5ec175341848b77585160a0ebd97c5 100644
--- a/core/modules/system/src/Form/ModulesListForm.php
+++ b/core/modules/system/src/Form/ModulesListForm.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\PreExistingConfigException;
 use Drupal\Core\Config\UnmetDependenciesException;
-use Drupal\Core\Controller\TitleResolverInterface;
 use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Extension\Extension;
 use Drupal\Core\Extension\ModuleHandlerInterface;
@@ -18,15 +17,11 @@
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface;
-use Drupal\Core\Menu\MenuLinkManagerInterface;
 use Drupal\Core\Render\Element;
-use Drupal\Core\Routing\RouteMatchInterface;
-use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\user\PermissionHandlerInterface;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Provides module installation interface.
diff --git a/core/modules/system/src/Form/ModulesUninstallConfirmForm.php b/core/modules/system/src/Form/ModulesUninstallConfirmForm.php
index 0208e7c495f8064d8a0ac1ccddd1c81d55608a13..69e32396d81e747ac8cef007a171f7fde1cb75a5 100644
--- a/core/modules/system/src/Form/ModulesUninstallConfirmForm.php
+++ b/core/modules/system/src/Form/ModulesUninstallConfirmForm.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Form\ConfirmFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface;
 
diff --git a/core/modules/system/src/Form/ThemeSettingsForm.php b/core/modules/system/src/Form/ThemeSettingsForm.php
index 978ca80e5019c5043c71a943e57aaccaca496221..ccf520285f83e17a3481d17dca0a21cba37ffd69 100644
--- a/core/modules/system/src/Form/ThemeSettingsForm.php
+++ b/core/modules/system/src/Form/ThemeSettingsForm.php
@@ -14,7 +14,6 @@
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Form\ConfigFormBase;
diff --git a/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php b/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
index c45b739cb18b37b817b9fc7de1e435fb0c6f4f99..3adcd189671d3a56ad3edb7b20466adcc89bee1a 100644
--- a/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
@@ -7,13 +7,11 @@
 
 namespace Drupal\system\Plugin\Block;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/system/src/Plugin/Block/SystemMainBlock.php b/core/modules/system/src/Plugin/Block/SystemMainBlock.php
index 92475ab1478bcabab885cb2047d2906df839aadd..2bb2479e176eaa3bc7faad3f01612d148e5b4f95 100644
--- a/core/modules/system/src/Plugin/Block/SystemMainBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemMainBlock.php
@@ -9,8 +9,6 @@
 
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Block\MainContentBlockPluginInterface;
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Provides a 'Main page content' block.
diff --git a/core/modules/system/src/Plugin/Block/SystemMessagesBlock.php b/core/modules/system/src/Plugin/Block/SystemMessagesBlock.php
index c1d78fb84f9592f83d79d2fde1ca2e170253fc3e..17ab4e4910520c2c166bb07c05c0f9e852a8a46e 100644
--- a/core/modules/system/src/Plugin/Block/SystemMessagesBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemMessagesBlock.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Block\MessagesBlockPluginInterface;
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Provides a block to display the messages.
diff --git a/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php b/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
index db76b802e03efd31c03555ef1c7497a8a596de8e..25ea051ef4e809000de6946e6607f93644e135e6 100644
--- a/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
@@ -8,8 +8,6 @@
 namespace Drupal\system\Plugin\Block;
 
 use Drupal\Core\Block\BlockBase;
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Provides a 'Powered by Drupal' block.
diff --git a/core/modules/system/src/Plugin/Condition/RequestPath.php b/core/modules/system/src/Plugin/Condition/RequestPath.php
index 4cd92de7236d58f8beda7cfa4c17d4101e670037..074d42f0eaa8e6a67fd606e37a19c75539d53203 100644
--- a/core/modules/system/src/Plugin/Condition/RequestPath.php
+++ b/core/modules/system/src/Plugin/Condition/RequestPath.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Path\CurrentPathStack;
 use Drupal\Core\Path\PathMatcherInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
 
diff --git a/core/modules/system/src/SystemManager.php b/core/modules/system/src/SystemManager.php
index 1ea232bb766a4a0725754570f6d7e2dcbd6a6eae..f61fd415341e96bf2659622e2a305889057b02df 100644
--- a/core/modules/system/src/SystemManager.php
+++ b/core/modules/system/src/SystemManager.php
@@ -11,8 +11,6 @@
 use Drupal\Core\Menu\MenuLinkTreeInterface;
 use Drupal\Core\Menu\MenuLinkInterface;
 use Drupal\Core\Menu\MenuTreeParameters;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
-use Drupal\Core\Database\Connection;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
 
diff --git a/core/modules/system/src/Tests/Common/AttachedAssetsTest.php b/core/modules/system/src/Tests/Common/AttachedAssetsTest.php
index 7bbcafbe534b73867d4e6cabd4cec114a0b1f80b..7440d995df6aa274dff590f1a29209ee9d56db54 100644
--- a/core/modules/system/src/Tests/Common/AttachedAssetsTest.php
+++ b/core/modules/system/src/Tests/Common/AttachedAssetsTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Serialization\Json;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\Crypt;
 use Drupal\Core\Asset\AttachedAssets;
 use Drupal\simpletest\KernelTestBase;
 
diff --git a/core/modules/system/src/Tests/Common/PageRenderTest.php b/core/modules/system/src/Tests/Common/PageRenderTest.php
index ec16e3621ba85b13944f87a1c293f9db419400db..1b4c387d79bac1945e3712207233a30f74fe405f 100644
--- a/core/modules/system/src/Tests/Common/PageRenderTest.php
+++ b/core/modules/system/src/Tests/Common/PageRenderTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\system\Tests\Common;
 
-use Drupal\Core\Render\MainContent\HtmlRenderer;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/system/src/Tests/Common/RenderTest.php b/core/modules/system/src/Tests/Common/RenderTest.php
index df0278b82d25576f3b776c68317c037ab5df1194..98de2b54820f96d6af23f4f6f9cf578ce9c724f7 100644
--- a/core/modules/system/src/Tests/Common/RenderTest.php
+++ b/core/modules/system/src/Tests/Common/RenderTest.php
@@ -7,10 +7,7 @@
 
 namespace Drupal\system\Tests\Common;
 
-use Drupal\Component\Serialization\Json;
-use Drupal\Component\Utility\Html;
 use Drupal\Core\Render\Element;
-use Drupal\Core\Url;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/system/src/Tests/Database/ConnectionUnitTest.php b/core/modules/system/src/Tests/Database/ConnectionUnitTest.php
index 0593ce8c9a676e347fefd4b633ddc09edffbb083..4327ac5e00dfc4f163be27c87306aff76a948c2b 100644
--- a/core/modules/system/src/Tests/Database/ConnectionUnitTest.php
+++ b/core/modules/system/src/Tests/Database/ConnectionUnitTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\system\Tests\Database;
 
-use Doctrine\Common\Reflection\StaticReflectionProperty;
 use Drupal\Core\Database\Database;
-use Drupal\Core\Site\Settings;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/system/src/Tests/DrupalKernel/ServiceDestructionTest.php b/core/modules/system/src/Tests/DrupalKernel/ServiceDestructionTest.php
index 68e28a2e8501bbc8436af8ab1b872b32bc52d30d..339f7fef775727fe035170690273c872af5a0605 100644
--- a/core/modules/system/src/Tests/DrupalKernel/ServiceDestructionTest.php
+++ b/core/modules/system/src/Tests/DrupalKernel/ServiceDestructionTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\simpletest\KernelTestBase;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Event\PostResponseEvent;
 
 /**
  * Tests that services are correctly destructed.
diff --git a/core/modules/system/src/Tests/Entity/EntityTypeConstraintValidatorTest.php b/core/modules/system/src/Tests/Entity/EntityTypeConstraintValidatorTest.php
index 3d6ecc67da04bb95f21e047c3cba5783903e8418..b9ebee288c9f985eab6a324d46180971125439c5 100644
--- a/core/modules/system/src/Tests/Entity/EntityTypeConstraintValidatorTest.php
+++ b/core/modules/system/src/Tests/Entity/EntityTypeConstraintValidatorTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\system\Tests\Entity;
 
-use Drupal\system\Tests\Entity\EntityUnitTestBase;
 use Drupal\system\Tests\TypedData;
 use Drupal\Core\TypedData\DataDefinition;
 
diff --git a/core/modules/system/src/Tests/Form/ElementsTableSelectTest.php b/core/modules/system/src/Tests/Form/ElementsTableSelectTest.php
index 22622e74d16187e803b68ad553dc1325bbdb4009..f9ce925b55fae5e7939f37c36464d4858368a48e 100644
--- a/core/modules/system/src/Tests/Form/ElementsTableSelectTest.php
+++ b/core/modules/system/src/Tests/Form/ElementsTableSelectTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Form\FormState;
 use Drupal\simpletest\WebTestBase;
-use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Tests the tableselect form element for expected behavior.
diff --git a/core/modules/system/src/Tests/Path/UrlAlterFunctionalTest.php b/core/modules/system/src/Tests/Path/UrlAlterFunctionalTest.php
index d9a8228f1e0dc73c8ba93d50cbe40d213d213a45..71915ac8686c083b2ac69bebf093b462b3f2fdb6 100644
--- a/core/modules/system/src/Tests/Path/UrlAlterFunctionalTest.php
+++ b/core/modules/system/src/Tests/Path/UrlAlterFunctionalTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\system\Tests\Path;
 
-use Drupal\Core\Url;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/system/src/Tests/Routing/RouterPermissionTest.php b/core/modules/system/src/Tests/Routing/RouterPermissionTest.php
index 048982c25a7c0759c0d416f53fa6bb990de14b1d..b3d5706b8c5048292f08df8b27cf8352fd78d256 100644
--- a/core/modules/system/src/Tests/Routing/RouterPermissionTest.php
+++ b/core/modules/system/src/Tests/Routing/RouterPermissionTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\system\Tests\Routing;
 
-use Drupal\Core\Routing\RequestHelper;
 use Drupal\simpletest\WebTestBase;
-use Symfony\Component\Routing\Exception\ResourceNotFoundException;
 
 /**
  * Function Tests for the routing permission system.
diff --git a/core/modules/system/src/Tests/Routing/RouterTest.php b/core/modules/system/src/Tests/Routing/RouterTest.php
index 076d0cebe4faaf5697dbdb99bc8b93d2f8d58b83..17345faffbc8236e765d0371d23ec24e0683c342 100644
--- a/core/modules/system/src/Tests/Routing/RouterTest.php
+++ b/core/modules/system/src/Tests/Routing/RouterTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\simpletest\WebTestBase;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Routing\Exception\RouteNotFoundException;
 use Drupal\Core\Url;
 
diff --git a/core/modules/system/src/Tests/System/TrustedHostsTest.php b/core/modules/system/src/Tests/System/TrustedHostsTest.php
index e54decc35fff9f8261b148ccc3188727ca72aa02..a3b08b8eb23a39b0507cf861fc579f991c98ae11 100644
--- a/core/modules/system/src/Tests/System/TrustedHostsTest.php
+++ b/core/modules/system/src/Tests/System/TrustedHostsTest.php
@@ -7,11 +7,7 @@
 
 namespace Drupal\system\Tests\System;
 
-use Drupal\Core\Site\Settings;
-use Drupal\Core\Url;
 use Drupal\simpletest\WebTestBase;
-use Drupal\user\Entity\User;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests output on the status overview page.
diff --git a/core/modules/system/src/Tests/Theme/TwigFilterTest.php b/core/modules/system/src/Tests/Theme/TwigFilterTest.php
index 2adc8c92a47d124e07d3b888840ea53b094a6046..aab1676aceaae779a2f43013a2c8a7e3369defef 100644
--- a/core/modules/system/src/Tests/Theme/TwigFilterTest.php
+++ b/core/modules/system/src/Tests/Theme/TwigFilterTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\system\Tests\Theme;
 
 use Drupal\simpletest\WebTestBase;
-use Drupal\Core\Template\Attribute;
 
 /**
  * Tests Drupal's Twig filters.
diff --git a/core/modules/system/src/Tests/Theme/TwigTransTest.php b/core/modules/system/src/Tests/Theme/TwigTransTest.php
index ac970cd267c5db796a5cca46d4343a34a9fd9605..6bfe4421b309a28569b899c9b063721bf1972741 100644
--- a/core/modules/system/src/Tests/Theme/TwigTransTest.php
+++ b/core/modules/system/src/Tests/Theme/TwigTransTest.php
@@ -7,10 +7,7 @@
 
 namespace Drupal\system\Tests\Theme;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Language\LanguageInterface;
-use Drupal\Core\Url;
-use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/system/src/Tests/Update/FilterHtmlUpdateTest.php b/core/modules/system/src/Tests/Update/FilterHtmlUpdateTest.php
index c9585920fa6118c3983c3c5444bf1cd872c7f7bf..c71143d3bc36b0a1c960ebee4c1f1622e2ba5b31 100644
--- a/core/modules/system/src/Tests/Update/FilterHtmlUpdateTest.php
+++ b/core/modules/system/src/Tests/Update/FilterHtmlUpdateTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\system\Tests\Update;
 
 use Drupal\filter\Entity\FilterFormat;
-use Drupal\system\Tests\Update\UpdatePathTestBase;
 
 /**
  * Tests that the allowed html configutations are updated with attributes.
diff --git a/core/modules/system/src/Tests/Update/SevenSecondaryLocalTasksConvertedIntoBlockUpdateTest.php b/core/modules/system/src/Tests/Update/SevenSecondaryLocalTasksConvertedIntoBlockUpdateTest.php
index 1a15213d72a016fa4abc64eea2993448a1bfdcc3..79086b34dc7d6a5b8e02190074ee0050c3c7287d 100644
--- a/core/modules/system/src/Tests/Update/SevenSecondaryLocalTasksConvertedIntoBlockUpdateTest.php
+++ b/core/modules/system/src/Tests/Update/SevenSecondaryLocalTasksConvertedIntoBlockUpdateTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\system\Tests\Update;
 
-use Drupal\node\Entity\Node;
-
 /**
  * Tests the upgrade path for converting seven secondary local tasks into a block.
  *
diff --git a/core/modules/system/src/Tests/Update/SiteBrandingConvertedIntoBlockUpdateTest.php b/core/modules/system/src/Tests/Update/SiteBrandingConvertedIntoBlockUpdateTest.php
index 86a34d7d8ba6cd8734faf096433328c433c6ad96..a5e24ce9275b3e2e18823957d739995c8ba9d96a 100644
--- a/core/modules/system/src/Tests/Update/SiteBrandingConvertedIntoBlockUpdateTest.php
+++ b/core/modules/system/src/Tests/Update/SiteBrandingConvertedIntoBlockUpdateTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\system\Tests\Update;
 
-use Drupal\node\Entity\Node;
-
 /**
  * Tests the upgrade path for local actions/tasks being converted into blocks.
  *
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index 5b391e71383e23e41fefeb419534926241db538e..704b2dc7e908b239cb404fe4b4bc8cd43c087953 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -5,11 +5,7 @@
  * Admin page callbacks for the system module.
  */
 
-use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Component\Utility\Xss;
 use Drupal\Component\Utility\Html;
-use Drupal\Core\Cache\Cache;
-use Drupal\Core\Extension\Extension;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Template\Attribute;
 
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index d5686dc837e83a93927a914434241683cc7e32b5..8addfd1b6f851d51f123e5234e308dde346e6f8b 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -7,11 +7,9 @@
 
 use Drupal\Component\Utility\Crypt;
 use Drupal\Component\Utility\Environment;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Url;
 use Drupal\Core\Database\Database;
 use Drupal\Core\DrupalKernel;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\StreamWrapper\PrivateStream;
 use Drupal\Core\StreamWrapper\PublicStream;
diff --git a/core/modules/system/tests/modules/cache_test/src/Controller/CacheTestController.php b/core/modules/system/tests/modules/cache_test/src/Controller/CacheTestController.php
index f47c0573351c1c7ba008358a90f77625b5055ac8..5c294bd8527dba844d3ffce43b301d567d436dc5 100644
--- a/core/modules/system/tests/modules/cache_test/src/Controller/CacheTestController.php
+++ b/core/modules/system/tests/modules/cache_test/src/Controller/CacheTestController.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\cache_test\Controller;
 
-use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Core\Render\HtmlResponse;
 use Drupal\Core\Url;
 
 /**
diff --git a/core/modules/system/tests/modules/database_test/database_test.module b/core/modules/system/tests/modules/database_test/database_test.module
index d0654531665d322786d08740ce9a2555b34baa1f..b5ee9c8c155b5c4571291ad2cf959eef565a43fc 100644
--- a/core/modules/system/tests/modules/database_test/database_test.module
+++ b/core/modules/system/tests/modules/database_test/database_test.module
@@ -1,7 +1,6 @@
 <?php
 
 use Drupal\Core\Database\Query\AlterableInterface;
-use Symfony\Component\HttpFoundation\JsonResponse;
 
 /**
  * Implements hook_query_alter().
diff --git a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMul.php b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMul.php
index 334ff94ee7bb93833bb275d6ea4197dfbced31f0..e821272150ffa9d6a36b4e0def726cdb738d665c 100644
--- a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMul.php
+++ b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMul.php
@@ -7,10 +7,6 @@
 
 namespace Drupal\entity_test\Entity;
 
-use Drupal\Core\Entity\EntityTypeInterface;
-use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\entity_test\Entity\EntityTest;
-
 /**
  * Defines the test entity class.
  *
diff --git a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMulRev.php b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMulRev.php
index 83dd0edc21cbd3776b17ca049453e3d3a4d900a7..a29dbbf424a584713eb1d843e6113e38a90768b1 100644
--- a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMulRev.php
+++ b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestMulRev.php
@@ -7,10 +7,6 @@
 
 namespace Drupal\entity_test\Entity;
 
-use Drupal\Core\Entity\EntityTypeInterface;
-use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\entity_test\Entity\EntityTestRev;
-
 /**
  * Defines the test entity class.
  *
diff --git a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestRev.php b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestRev.php
index 79140325ab75c4607abe06850886ca38eb41500f..7a4fefde876ce9b68c234cc034a971b874f5947a 100644
--- a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestRev.php
+++ b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestRev.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\entity_test\Entity\EntityTest;
 
 /**
  * Defines the test entity class.
diff --git a/core/modules/system/tests/modules/entity_test/src/EntityTestForm.php b/core/modules/system/tests/modules/entity_test/src/EntityTestForm.php
index 59e798b5b88539ba132d69637786b9613bd48064..164557bd14811cc89bfe15bda566d1cbf2a80103 100644
--- a/core/modules/system/tests/modules/entity_test/src/EntityTestForm.php
+++ b/core/modules/system/tests/modules/entity_test/src/EntityTestForm.php
@@ -9,7 +9,6 @@
 use Drupal\Component\Utility\Random;
 use Drupal\Core\Entity\ContentEntityForm;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\LanguageInterface;
 
 /**
  * Form controller for the test entity edit forms.
diff --git a/core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraintValidator.php b/core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraintValidator.php
index d643b7499984c39c915e3f4e46f1c57adc3d5204..511122da523e1540ded8d2bc7a8a270ce0cb503d 100644
--- a/core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraintValidator.php
+++ b/core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraintValidator.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\entity_test\Plugin\Validation\Constraint;
 
-use Drupal\Core\Entity\EntityTypeInterface;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidator;
 
diff --git a/core/modules/system/tests/modules/menu_test/src/TestControllers.php b/core/modules/system/tests/modules/menu_test/src/TestControllers.php
index 364c77b01651eb2504dc252fc87906904510d5c1..a7e39e4b5f022e992b546ccca97b298bfc773b9c 100644
--- a/core/modules/system/tests/modules/menu_test/src/TestControllers.php
+++ b/core/modules/system/tests/modules/menu_test/src/TestControllers.php
@@ -8,7 +8,6 @@
 namespace Drupal\menu_test;
 
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Core\Entity\EntityInterface;
 
 /**
  * Controllers for testing the menu integration routing system.
diff --git a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockComplexContextBlock.php b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockComplexContextBlock.php
index 8041c3a59812b57c548eb4a2055159844a725baa..1cb657a4a61da8dd62cae6cac2e5a825ff61d3be 100644
--- a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockComplexContextBlock.php
+++ b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockComplexContextBlock.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\plugin_test\Plugin\plugin_test\mock_block;
 
-use Drupal\Core\Plugin\Context\ContextDefinition;
 use Drupal\Core\Plugin\ContextAwarePluginBase;
 
 /**
diff --git a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockMenuBlock.php b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockMenuBlock.php
index 375b784c71cb2035f0062f2f7c66460647479a40..7ca628fc0fcbbae04fc461bac79846d5a10c3853 100644
--- a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockMenuBlock.php
+++ b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockMenuBlock.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\plugin_test\Plugin\plugin_test\mock_block;
 
-use Drupal\Component\Plugin\PluginBase;
-
 /**
  * Mock implementation of a menu block plugin used by Plugin API unit tests.
  *
diff --git a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockUserNameBlock.php b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockUserNameBlock.php
index 07c7a798347dadd76dd3491530beb07ce6bccaca..9150167e5278a7840965326fb72d2ff547ac3788 100644
--- a/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockUserNameBlock.php
+++ b/core/modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/mock_block/MockUserNameBlock.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\plugin_test\Plugin\plugin_test\mock_block;
 
-use Drupal\Core\Plugin\Context\ContextDefinition;
 use Drupal\Core\Plugin\ContextAwarePluginBase;
 
 /**
diff --git a/core/modules/system/tests/modules/session_test/src/Controller/SessionTestController.php b/core/modules/system/tests/modules/session_test/src/Controller/SessionTestController.php
index 4e4954fbd79e0f89416eba8a8ae181b1988cc76a..3af2ea5c84769ff48ad46896e9a7b86dccbbd70f 100644
--- a/core/modules/system/tests/modules/session_test/src/Controller/SessionTestController.php
+++ b/core/modules/system/tests/modules/session_test/src/Controller/SessionTestController.php
@@ -8,7 +8,6 @@
 namespace Drupal\session_test\Controller;
 
 use Drupal\Core\Controller\ControllerBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
diff --git a/core/modules/system/tests/modules/test_page_test/src/Controller/Test.php b/core/modules/system/tests/modules/test_page_test/src/Controller/Test.php
index 934e6a2be00b8166e499298d9a0126099ff659b8..5e2835e6abefea5d7cdfa143827375c5edbb58e7 100644
--- a/core/modules/system/tests/modules/test_page_test/src/Controller/Test.php
+++ b/core/modules/system/tests/modules/test_page_test/src/Controller/Test.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\test_page_test\Controller;
 
-use Drupal\Component\Utility\Html;
-
 /**
  * Defines a test controller for page titles.
  */
diff --git a/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php b/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
index e9eb7a7c1a1fca4a35ac8b45c9f14ed5d869813e..5265b8e583a53cd70234544409fa79cff3bdb890 100644
--- a/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
+++ b/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\system\Kernel\Extension;
 
-use Drupal\Component\FileCache\FileCacheFactory;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use \Drupal\Core\Extension\ModuleUninstallValidatorException;
 use Drupal\KernelTests\KernelTestBase;
diff --git a/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php b/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php
index 64e61c7d86fd2b8992f4abfb826793418d86cfb7..29f0cea3ba6909298234e289677d026f4b217024 100644
--- a/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php
+++ b/core/modules/system/tests/src/Unit/Breadcrumbs/PathBasedBreadcrumbBuilderTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Link;
 use Drupal\Core\Access\AccessResultAllowed;
-use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Core\Url;
 use Drupal\Core\Utility\LinkGeneratorInterface;
@@ -21,7 +20,6 @@
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\Routing\RequestContext;
 use Symfony\Component\Routing\Route;
 
 /**
diff --git a/core/modules/taxonomy/src/Plugin/migrate/builder/d6/TermNode.php b/core/modules/taxonomy/src/Plugin/migrate/builder/d6/TermNode.php
index 39ba5eb54bfd51505a34ccd80436ff94e40cae69..36458acde30669277216608a6841184d9c814149 100644
--- a/core/modules/taxonomy/src/Plugin/migrate/builder/d6/TermNode.php
+++ b/core/modules/taxonomy/src/Plugin/migrate/builder/d6/TermNode.php
@@ -13,7 +13,6 @@
 use Drupal\migrate\MigrateMessage;
 use Drupal\migrate\MigrateTemplateStorage;
 use Drupal\migrate\Plugin\migrate\builder\BuilderBase;
-use Drupal\migrate\Row;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/taxonomy/src/Plugin/views/argument/IndexTid.php b/core/modules/taxonomy/src/Plugin/views/argument/IndexTid.php
index 89a31f778c2d8a134f7479e405a866e0b62220c0..6018b06b70a5aead7beac4cd0bf7545bf4089d77 100644
--- a/core/modules/taxonomy/src/Plugin/views/argument/IndexTid.php
+++ b/core/modules/taxonomy/src/Plugin/views/argument/IndexTid.php
@@ -9,7 +9,6 @@
 
 use Drupal\taxonomy\Entity\Term;
 use Drupal\views\Plugin\views\argument\ManyToOne;
-use Drupal\Component\Utility\SafeMarkup;
 
 /**
  * Allow taxonomy term ID(s) as argument.
diff --git a/core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php b/core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php
index e2df37fadb8ffdbd550c1b36c9cb48aac01dfe8f..c63e444bddbaf4fb40e6f9fe01f0f7c6816cc632 100644
--- a/core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php
+++ b/core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
-use Drupal\taxonomy\Entity\Term;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/taxonomy/src/Plugin/views/argument_default/Tid.php b/core/modules/taxonomy/src/Plugin/views/argument_default/Tid.php
index 07dca4cde7b3d32b4b97bf9bf029146157a5acba..f52e264a30a391ffadde8fc3a955113098e5972b 100644
--- a/core/modules/taxonomy/src/Plugin/views/argument_default/Tid.php
+++ b/core/modules/taxonomy/src/Plugin/views/argument_default/Tid.php
@@ -17,8 +17,6 @@
 use Drupal\views\Plugin\views\argument_default\ArgumentDefaultPluginBase;
 use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
-use Drupal\taxonomy\Entity\Vocabulary;
 use Drupal\taxonomy\VocabularyStorageInterface;
 
 /**
diff --git a/core/modules/taxonomy/src/Plugin/views/argument_validator/TermName.php b/core/modules/taxonomy/src/Plugin/views/argument_validator/TermName.php
index 0a8c081ab2b2257085afaea76ab39afc6be17c5c..d5a7a7e2d1fbfa6d2a88d244c524f050f37e1be0 100644
--- a/core/modules/taxonomy/src/Plugin/views/argument_validator/TermName.php
+++ b/core/modules/taxonomy/src/Plugin/views/argument_validator/TermName.php
@@ -8,8 +8,6 @@
 namespace Drupal\taxonomy\Plugin\views\argument_validator;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\ViewExecutable;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\views\Plugin\views\argument_validator\Entity;
 
diff --git a/core/modules/taxonomy/src/Plugin/views/field/TaxonomyIndexTid.php b/core/modules/taxonomy/src/Plugin/views/field/TaxonomyIndexTid.php
index 3049f6f7f20d69666f57d28717c0ad7e7a061c44..845f3524bf023d57692034d9ffcd40daf98bab1f 100644
--- a/core/modules/taxonomy/src/Plugin/views/field/TaxonomyIndexTid.php
+++ b/core/modules/taxonomy/src/Plugin/views/field/TaxonomyIndexTid.php
@@ -11,7 +11,6 @@
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\field\PrerenderList;
-use Drupal\taxonomy\Entity\Vocabulary;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\taxonomy\VocabularyStorageInterface;
 
diff --git a/core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTid.php b/core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTid.php
index 01086b08b69efc8e4e0e346c30c5aa23dbc36ec2..9bb575c4e3fec59236a1d8556a63ba54a0d825c3 100644
--- a/core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTid.php
+++ b/core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTid.php
@@ -8,7 +8,6 @@
 namespace Drupal\taxonomy\Plugin\views\filter;
 
 use Drupal\Core\Entity\Element\EntityAutocomplete;
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\taxonomy\Entity\Term;
 use Drupal\taxonomy\TermStorageInterface;
@@ -16,7 +15,6 @@
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\filter\ManyToOne;
-use Drupal\Component\Utility\Tags;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/taxonomy/src/TermStorage.php b/core/modules/taxonomy/src/TermStorage.php
index 8cc5be8627518c501bf492129da904c07070099f..1876b721da7c5925122682d9d12f3895eef1d2d8 100644
--- a/core/modules/taxonomy/src/TermStorage.php
+++ b/core/modules/taxonomy/src/TermStorage.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Entity\Query\QueryInterface;
 
 /**
  * Defines a Controller class for taxonomy terms.
diff --git a/core/modules/taxonomy/src/Tests/EfqTest.php b/core/modules/taxonomy/src/Tests/EfqTest.php
index f2fd1becebf48cf6014d3532ca7261a8701a7478..bb94033c90ee8fb0fba06fb8b72817b7888951dd 100644
--- a/core/modules/taxonomy/src/Tests/EfqTest.php
+++ b/core/modules/taxonomy/src/Tests/EfqTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\taxonomy\Tests;
 
-use Drupal\Core\Entity\Query\QueryFactory;
-
 /**
  * Verifies operation of a taxonomy-based Entity Query.
  *
diff --git a/core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyFieldInstanceTest.php b/core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyFieldInstanceTest.php
index a1f0c5be6903b0ed71d5717b6701f92cd183d026..903957fc31d83f97a3871d6d588a70c6f63d5148 100644
--- a/core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyFieldInstanceTest.php
+++ b/core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyFieldInstanceTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\taxonomy\Tests\Migrate\d6;
 
-use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\migrate\Entity\Migration;
 use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
diff --git a/core/modules/taxonomy/src/Tests/TermKernelTest.php b/core/modules/taxonomy/src/Tests/TermKernelTest.php
index 9074375727d0101071872e8d53d87a7bc5af239d..549dcea779cd38ab46c0e0e85dbbdaa12c1d5955 100644
--- a/core/modules/taxonomy/src/Tests/TermKernelTest.php
+++ b/core/modules/taxonomy/src/Tests/TermKernelTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\taxonomy\Tests;
 
 use Drupal\taxonomy\Entity\Term;
-use Drupal\taxonomy\Tests\TaxonomyTestTrait;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/taxonomy/src/Tests/Views/TaxonomyIndexTidUiTest.php b/core/modules/taxonomy/src/Tests/Views/TaxonomyIndexTidUiTest.php
index 95b64a2c24e6cb3c6bdff5ec8bddb825d4b7fc85..c2a0bcdc148f071ea4c5a996110298d91a6355cb 100644
--- a/core/modules/taxonomy/src/Tests/Views/TaxonomyIndexTidUiTest.php
+++ b/core/modules/taxonomy/src/Tests/Views/TaxonomyIndexTidUiTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\taxonomy\Tests\Views;
 
-use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\field\Tests\EntityReference\EntityReferenceTestTrait;
 use Drupal\taxonomy\Entity\Term;
 use Drupal\taxonomy\Entity\Vocabulary;
diff --git a/core/modules/taxonomy/src/Tests/Views/TaxonomyRelationshipTest.php b/core/modules/taxonomy/src/Tests/Views/TaxonomyRelationshipTest.php
index ae065cf30f910706d1d55cef621f93ac41d231ae..5889debb77282199362e3086edae81d34cf91709 100644
--- a/core/modules/taxonomy/src/Tests/Views/TaxonomyRelationshipTest.php
+++ b/core/modules/taxonomy/src/Tests/Views/TaxonomyRelationshipTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\node\NodeInterface;
 use Drupal\taxonomy\TermInterface;
-use Drupal\views\Tests\ViewTestData;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/taxonomy/src/Tests/Views/TaxonomyViewsFieldAccessTest.php b/core/modules/taxonomy/src/Tests/Views/TaxonomyViewsFieldAccessTest.php
index c16b10a789dd0e46cb17ae3f7588b942c4cb4a41..132e8ed526f5e73cac8d384d8c80e538bc28b4aa 100644
--- a/core/modules/taxonomy/src/Tests/Views/TaxonomyViewsFieldAccessTest.php
+++ b/core/modules/taxonomy/src/Tests/Views/TaxonomyViewsFieldAccessTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\taxonomy\Entity\Term;
 use Drupal\taxonomy\Entity\Vocabulary;
-use Drupal\user\Entity\User;
 use Drupal\views\Tests\Handler\FieldFieldAccessTestBase;
 
 /**
diff --git a/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
index a46a47e541fc64acdf2cddc3338433dca7ab19be..6596b8e2e45877af8e27e7cf2a20b5b98008ff29 100644
--- a/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
+++ b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\taxonomy\Tests;
 
 use Drupal\Component\Utility\Unicode;
-use Drupal\field\Entity\FieldConfig;
 use Drupal\taxonomy\Entity\Vocabulary;
 
 /**
diff --git a/core/modules/taxonomy/src/VocabularyStorage.php b/core/modules/taxonomy/src/VocabularyStorage.php
index 85fd4a6293164f7dc528243a34a2904120bf4579..b761bcc22c7952091667e6ef6766f9387cba4009 100644
--- a/core/modules/taxonomy/src/VocabularyStorage.php
+++ b/core/modules/taxonomy/src/VocabularyStorage.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\taxonomy;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\Entity\ConfigEntityStorage;
 
 /**
diff --git a/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWithSummaryWidget.php b/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWithSummaryWidget.php
index d3c9cd38b919b4b3385cb552df70b9716a74d8a9..8bfb7134d8e82c77568b583ec5118a23d3f2efdb 100644
--- a/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWithSummaryWidget.php
+++ b/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWithSummaryWidget.php
@@ -8,7 +8,6 @@
 namespace Drupal\text\Plugin\Field\FieldWidget;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\text\Plugin\Field\FieldWidget\TextareaWidget;
 use Symfony\Component\Validator\ConstraintViolationInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 
diff --git a/core/modules/text/src/TextProcessed.php b/core/modules/text/src/TextProcessed.php
index 197b28c65a4784ce23f83f0fbd83b502b241355d..57b36f42f208a6c34782f80a46c38809b62cd8b8 100644
--- a/core/modules/text/src/TextProcessed.php
+++ b/core/modules/text/src/TextProcessed.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\text;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\TypedData\DataDefinitionInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
 use Drupal\Core\TypedData\TypedData;
diff --git a/core/modules/text/text.module b/core/modules/text/text.module
index f30acf71ccbdc08e7319342b949d8549ca9d60ba..1d2fdcc828ee93f4e90f9fbbddc546765ba21b80 100644
--- a/core/modules/text/text.module
+++ b/core/modules/text/text.module
@@ -7,7 +7,6 @@
 
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Unicode;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 
 /**
diff --git a/core/modules/toolbar/src/Tests/ToolbarAdminMenuTest.php b/core/modules/toolbar/src/Tests/ToolbarAdminMenuTest.php
index 4ce22e657a8206dc24351563d41f40cef4760b26..96670199b150cfca08128e164f0e417a68c152e5 100644
--- a/core/modules/toolbar/src/Tests/ToolbarAdminMenuTest.php
+++ b/core/modules/toolbar/src/Tests/ToolbarAdminMenuTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\toolbar\Tests;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Url;
 use Drupal\language\Entity\ConfigurableLanguage;
diff --git a/core/modules/toolbar/toolbar.module b/core/modules/toolbar/toolbar.module
index 02b3f85317c68765ce5ae05305cad0f7788714ca..a8eeef4d408796ca88176fa3cb82d46bb9d2fc2f 100644
--- a/core/modules/toolbar/toolbar.module
+++ b/core/modules/toolbar/toolbar.module
@@ -5,13 +5,11 @@
  * Administration toolbar for quick access to top level administration items.
  */
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Menu\MenuTreeParameters;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Template\Attribute;
-use Drupal\Component\Datetime\DateTimePlus;
 use Drupal\Component\Utility\Crypt;
 use Drupal\Core\Url;
 
diff --git a/core/modules/tour/src/Entity/Tour.php b/core/modules/tour/src/Entity/Tour.php
index 8a4576c7d936a06c64d8307fde66bc2ea9484bf0..5d42e0b0466ff79c558e4d83df1428c0ec9794cb 100644
--- a/core/modules/tour/src/Entity/Tour.php
+++ b/core/modules/tour/src/Entity/Tour.php
@@ -8,7 +8,6 @@
 namespace Drupal\tour\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
-use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\tour\TipsPluginCollection;
 use Drupal\tour\TourInterface;
 
diff --git a/core/modules/tour/src/TipPluginBase.php b/core/modules/tour/src/TipPluginBase.php
index 2c226f58a205182668e71f99548d57b3db53077b..5c4a98158e17a8e187fde33664119b18cb98c6a3 100644
--- a/core/modules/tour/src/TipPluginBase.php
+++ b/core/modules/tour/src/TipPluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\tour;
 
 use Drupal\Core\Plugin\PluginBase;
-use Drupal\tour\TipPluginInterface;
 
 /**
  * Defines a base tour item implementation.
diff --git a/core/modules/tour/src/TourViewBuilder.php b/core/modules/tour/src/TourViewBuilder.php
index caccf157342c52e599f6a66d350f233ea249fd56..e5a6d9d6490dbc0939e24a70e96aad68c7a918af 100644
--- a/core/modules/tour/src/TourViewBuilder.php
+++ b/core/modules/tour/src/TourViewBuilder.php
@@ -8,7 +8,6 @@
 namespace Drupal\tour;
 
 use Drupal\Core\Entity\EntityViewBuilder;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Component\Utility\Html;
 
 /**
diff --git a/core/modules/tour/tour.module b/core/modules/tour/tour.module
index 3b153e21b7d8376045b554a1d46183757238363e..ed53f25dbc152f021161e9ae992b5c8866a3cc85 100644
--- a/core/modules/tour/tour.module
+++ b/core/modules/tour/tour.module
@@ -5,7 +5,6 @@
  * Main functions of the module.
  */
 
-use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 
 /**
diff --git a/core/modules/update/tests/modules/update_test/update_test.module b/core/modules/update/tests/modules/update_test/update_test.module
index fe01b21a69832384ee5566c7cac70512c86613c3..f8de3cd8bb00cc2bf33eab6e78a0ab97a4568b53 100644
--- a/core/modules/update/tests/modules/update_test/update_test.module
+++ b/core/modules/update/tests/modules/update_test/update_test.module
@@ -1,8 +1,6 @@
 <?php
 
 use Drupal\Core\Extension\Extension;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\BinaryFileResponse;
 
 /**
  * @file
diff --git a/core/modules/update/update.module b/core/modules/update/update.module
index df674de65b1b68a6c51f307eafc8ca0334507e77..98f756911e469ea2d811ece215e8e65387dba77e 100644
--- a/core/modules/update/update.module
+++ b/core/modules/update/update.module
@@ -15,7 +15,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Site\Settings;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 
 // These are internally used constants for this code, do not modify.
 
diff --git a/core/modules/user/src/AccountForm.php b/core/modules/user/src/AccountForm.php
index 289a1a9070c66b82d6a9f896d6a49eae31e33150..af7bae032a6be526da61605e6ffccae2f3d252f1 100644
--- a/core/modules/user/src/AccountForm.php
+++ b/core/modules/user/src/AccountForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user;
 
-use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Entity\ContentEntityForm;
 use Drupal\Core\Entity\EntityConstraintViolationListInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
@@ -15,7 +14,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
-use Drupal\Core\Url;
 use Drupal\language\ConfigurableLanguageManagerInterface;
 use Drupal\user\Plugin\LanguageNegotiation\LanguageNegotiationUser;
 use Drupal\user\Plugin\LanguageNegotiation\LanguageNegotiationUserAdmin;
diff --git a/core/modules/user/src/Entity/Role.php b/core/modules/user/src/Entity/Role.php
index 84212150c4fc89ca563852c21e129a7960376702..45cad6584d0b338777c9adc83ab2461bc09698a6 100644
--- a/core/modules/user/src/Entity/Role.php
+++ b/core/modules/user/src/Entity/Role.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Entity;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\user\RoleInterface;
diff --git a/core/modules/user/src/Form/UserLoginForm.php b/core/modules/user/src/Form/UserLoginForm.php
index 83c3468e97c82f8aa1d862640645c0d9f92297eb..b3360910a743913c5516082f43f6c9c1cf66ab9b 100644
--- a/core/modules/user/src/Form/UserLoginForm.php
+++ b/core/modules/user/src/Form/UserLoginForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Form;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Flood\FloodInterface;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/user/src/Form/UserPasswordForm.php b/core/modules/user/src/Form/UserPasswordForm.php
index f874428ab202544700bb7d89cbe747b7d693a2ef..04075eb88c27c10fe08ceb7248e7bddd457764c5 100644
--- a/core/modules/user/src/Form/UserPasswordForm.php
+++ b/core/modules/user/src/Form/UserPasswordForm.php
@@ -7,13 +7,11 @@
 
 namespace Drupal\user\Form;
 
-use Drupal\Core\Field\Plugin\Field\FieldType\EmailItem;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Render\Element\Email;
 use Drupal\user\UserStorageInterface;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
diff --git a/core/modules/user/src/Plugin/Action/AddRoleUser.php b/core/modules/user/src/Plugin/Action/AddRoleUser.php
index 0ff48c693742ee33de31bdbc9d6fddca36e8c4c3..526f60314636b99b276466baafcfbb8fe61c8ac5 100644
--- a/core/modules/user/src/Plugin/Action/AddRoleUser.php
+++ b/core/modules/user/src/Plugin/Action/AddRoleUser.php
@@ -7,10 +7,6 @@
 
 namespace Drupal\user\Plugin\Action;
 
-use Drupal\Core\Access\AccessResult;
-use Drupal\Core\Session\AccountInterface;
-use Drupal\user\Plugin\Action\ChangeUserRoleBase;
-
 /**
  * Adds a role to a user.
  *
diff --git a/core/modules/user/src/Plugin/Action/RemoveRoleUser.php b/core/modules/user/src/Plugin/Action/RemoveRoleUser.php
index a0f7bdb00c4bf2cdd243a303fa8d7b8a2479e7ef..470d489e26d44e190aa38da60605f42368aa9d7b 100644
--- a/core/modules/user/src/Plugin/Action/RemoveRoleUser.php
+++ b/core/modules/user/src/Plugin/Action/RemoveRoleUser.php
@@ -7,10 +7,6 @@
 
 namespace Drupal\user\Plugin\Action;
 
-use Drupal\Core\Access\AccessResult;
-use Drupal\Core\Session\AccountInterface;
-use Drupal\user\Plugin\Action\ChangeUserRoleBase;
-
 /**
  * Removes a role from a user.
  *
diff --git a/core/modules/user/src/Plugin/Condition/UserRole.php b/core/modules/user/src/Plugin/Condition/UserRole.php
index f6ddb87d44f92101aab7856edef71f878b8d748b..b0965a1ed5871eeb5cc7c641a60204bba36b19ac 100644
--- a/core/modules/user/src/Plugin/Condition/UserRole.php
+++ b/core/modules/user/src/Plugin/Condition/UserRole.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Condition\ConditionPluginBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Plugin\Context\ContextDefinition;
 
 /**
  * Provides a 'User Role' condition.
diff --git a/core/modules/user/src/Plugin/LanguageNegotiation/LanguageNegotiationUserAdmin.php b/core/modules/user/src/Plugin/LanguageNegotiation/LanguageNegotiationUserAdmin.php
index 3917c47f3067ea64bd156f141dd4183ef90707e2..9e6936d0cc5ed01eeba06e80eb24e23cad73b5de 100644
--- a/core/modules/user/src/Plugin/LanguageNegotiation/LanguageNegotiationUserAdmin.php
+++ b/core/modules/user/src/Plugin/LanguageNegotiation/LanguageNegotiationUserAdmin.php
@@ -10,7 +10,6 @@
 use Drupal\Core\PathProcessor\PathProcessorManager;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Routing\AdminContext;
-use Drupal\Core\Routing\RouteMatch;
 use Drupal\Core\Routing\StackedRouteMatchInterface;
 use Drupal\language\LanguageNegotiationMethodBase;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
diff --git a/core/modules/user/src/Plugin/Validation/Constraint/UserMailRequired.php b/core/modules/user/src/Plugin/Validation/Constraint/UserMailRequired.php
index ae4973ca9b55dbaafe24d63559e15d136b2a937d..1204c7b3d743e873dfa109d6ba74d6967d5896b9 100644
--- a/core/modules/user/src/Plugin/Validation/Constraint/UserMailRequired.php
+++ b/core/modules/user/src/Plugin/Validation/Constraint/UserMailRequired.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Plugin\Validation\Constraint;
 
-use Drupal\Component\Utility\Html;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidatorInterface;
 use Symfony\Component\Validator\ExecutionContextInterface;
diff --git a/core/modules/user/src/Plugin/views/access/Role.php b/core/modules/user/src/Plugin/views/access/Role.php
index b7bbf509b45c29cf18a488751536b75bc9545fcc..ad779d63cc92b062e27a213e65aadf7757f833b9 100644
--- a/core/modules/user/src/Plugin/views/access/Role.php
+++ b/core/modules/user/src/Plugin/views/access/Role.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Plugin\views\access;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/user/src/Plugin/views/argument_default/User.php b/core/modules/user/src/Plugin/views/argument_default/User.php
index faeb4b7b029b53c10d03c6e5d3df4b37903e1871..7d1e39c284268986bc41f098bdf394d44f11a2af 100644
--- a/core/modules/user/src/Plugin/views/argument_default/User.php
+++ b/core/modules/user/src/Plugin/views/argument_default/User.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\views\Plugin\views\argument_default\ArgumentDefaultPluginBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 use Drupal\user\UserInterface;
 use Drupal\node\NodeInterface;
 
diff --git a/core/modules/user/src/Plugin/views/field/UserBulkForm.php b/core/modules/user/src/Plugin/views/field/UserBulkForm.php
index b5f008b739858baa0929121274bfcfb873ad2b81..4167a3b996585e6c14c32f7005e12501ea5f8c3b 100644
--- a/core/modules/user/src/Plugin/views/field/UserBulkForm.php
+++ b/core/modules/user/src/Plugin/views/field/UserBulkForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Plugin\views\field;
 
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\system\Plugin\views\field\BulkForm;
 use Drupal\user\UserInterface;
diff --git a/core/modules/user/src/Plugin/views/field/UserData.php b/core/modules/user/src/Plugin/views/field/UserData.php
index 7c001868b9ca60c59099a27c5987901b86ee198f..948cbae53df7e10b9289eb9d01fab5085312a2e6 100644
--- a/core/modules/user/src/Plugin/views/field/UserData.php
+++ b/core/modules/user/src/Plugin/views/field/UserData.php
@@ -9,10 +9,8 @@
 
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\field\FieldPluginBase;
 use Drupal\views\ResultRow;
-use Drupal\views\ViewExecutable;
 use Drupal\user\UserDataInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/user/src/Plugin/views/filter/Name.php b/core/modules/user/src/Plugin/views/filter/Name.php
index 5794b627f7a0233595249d20aad78443b0da211b..a4be2f547f97ad20c79ef6f58da1ae14ded2f841 100644
--- a/core/modules/user/src/Plugin/views/filter/Name.php
+++ b/core/modules/user/src/Plugin/views/filter/Name.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Plugin\views\filter;
 
-use Drupal\Component\Utility\Tags;
 use Drupal\Core\Entity\Element\EntityAutocomplete;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\user\Entity\User;
diff --git a/core/modules/user/src/RoleForm.php b/core/modules/user/src/RoleForm.php
index bb801eaddeb03628608f6186499b1af7abef047d..ada54dd34e643238ab339dad58cb2cb5467a0b8d 100644
--- a/core/modules/user/src/RoleForm.php
+++ b/core/modules/user/src/RoleForm.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user;
 
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityForm;
 use Drupal\Core\Form\FormStateInterface;
 
diff --git a/core/modules/user/src/SharedTempStoreFactory.php b/core/modules/user/src/SharedTempStoreFactory.php
index c5f11e890e089789d9ed8c022546a9a1ffdcfb9d..1a537e37dfd5e162b0772b3fe51d0bc7131163dc 100644
--- a/core/modules/user/src/SharedTempStoreFactory.php
+++ b/core/modules/user/src/SharedTempStoreFactory.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user;
 
-use Drupal\Component\Serialization\SerializationInterface;
 use Drupal\Core\KeyValueStore\KeyValueExpirableFactoryInterface;
 use Drupal\Core\Lock\LockBackendInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
diff --git a/core/modules/user/src/Tests/TempStoreDatabaseTest.php b/core/modules/user/src/Tests/TempStoreDatabaseTest.php
index 6e897000c593d50dcd4a7ba8609068addce89e79..6e4d837ff6ad33e188a1129a542a7dcf733d088f 100644
--- a/core/modules/user/src/Tests/TempStoreDatabaseTest.php
+++ b/core/modules/user/src/Tests/TempStoreDatabaseTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Tests;
 
-use Drupal\Component\Serialization\PhpSerialize;
 use Drupal\Core\KeyValueStore\KeyValueExpirableFactory;
 use Drupal\simpletest\KernelTestBase;
 use Drupal\user\SharedTempStoreFactory;
diff --git a/core/modules/user/src/Tests/UserAccountLinksTest.php b/core/modules/user/src/Tests/UserAccountLinksTest.php
index cb3ea8871fcfd171c08834daa06c33e95aa60dae..5686fbea0ae4d8d34260d6ecfce8460094606667 100644
--- a/core/modules/user/src/Tests/UserAccountLinksTest.php
+++ b/core/modules/user/src/Tests/UserAccountLinksTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Tests;
 
-use Drupal\Core\Menu\MenuTreeParameters;
 use Drupal\simpletest\WebTestBase;
 
 /**
diff --git a/core/modules/user/src/Tests/UserEntityTest.php b/core/modules/user/src/Tests/UserEntityTest.php
index a4601ef6982045e9937478c8ff0dcd2d7ec5d167..a9954f6b856b363be54bf4d974a5c10382aa8205 100644
--- a/core/modules/user/src/Tests/UserEntityTest.php
+++ b/core/modules/user/src/Tests/UserEntityTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\user\Tests;
 
-use Drupal\Core\Language\LanguageInterface;
 use Drupal\simpletest\KernelTestBase;
 use Drupal\user\Entity\User;
 use Drupal\user\RoleInterface;
diff --git a/core/modules/user/src/Tests/UserLoginTest.php b/core/modules/user/src/Tests/UserLoginTest.php
index 610692772083e4266957418a15a53941f174ee3a..39ffed57bcc26d611853724d16e5714ab07035a7 100644
--- a/core/modules/user/src/Tests/UserLoginTest.php
+++ b/core/modules/user/src/Tests/UserLoginTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\user\Tests;
 
 use Drupal\simpletest\WebTestBase;
-use Drupal\Core\Password\PhpassHashedPassword;
 use Drupal\user\Entity\User;
 
 /**
diff --git a/core/modules/user/src/Tests/UserPermissionsTest.php b/core/modules/user/src/Tests/UserPermissionsTest.php
index e5baa49b24f63975865e63b5dbca9860c0b40055..42bbad12edff999715080c0a7700a3648aba1558 100644
--- a/core/modules/user/src/Tests/UserPermissionsTest.php
+++ b/core/modules/user/src/Tests/UserPermissionsTest.php
@@ -10,7 +10,6 @@
 use Drupal\simpletest\WebTestBase;
 use Drupal\user\RoleInterface;
 use Drupal\user\Entity\Role;
-use Drupal\user\RoleStorage;
 
 /**
  * Verify that role permissions can be added and removed via the permissions
diff --git a/core/modules/user/src/Tests/UserValidationTest.php b/core/modules/user/src/Tests/UserValidationTest.php
index f39e11ee2cfff5217fc4928427becddd51d1854e..4891d5a1550649692c380bec9e980f3e9460a597 100644
--- a/core/modules/user/src/Tests/UserValidationTest.php
+++ b/core/modules/user/src/Tests/UserValidationTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\user\Tests;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Field\Plugin\Field\FieldType\EmailItem;
 use Drupal\Core\Language\Language;
 use Drupal\Core\Render\Element\Email;
 use Drupal\simpletest\KernelTestBase;
diff --git a/core/modules/user/src/Tests/Views/AccessRoleTest.php b/core/modules/user/src/Tests/Views/AccessRoleTest.php
index 043971a260efab9ed1b6245131f7c5bb089b285a..a6230b3ab55d54863f17cb424fd054f390bb01af 100644
--- a/core/modules/user/src/Tests/Views/AccessRoleTest.php
+++ b/core/modules/user/src/Tests/Views/AccessRoleTest.php
@@ -11,7 +11,6 @@
 use Drupal\user\Plugin\views\access\Role;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Views;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests views role access plugin.
diff --git a/core/modules/user/src/Tests/Views/HandlerFieldRoleTest.php b/core/modules/user/src/Tests/Views/HandlerFieldRoleTest.php
index 9434925d552f47f22e6f2ea0f1d62448859e4882..5f15e7122d24a79c818e673d8f992de51b23bae8 100644
--- a/core/modules/user/src/Tests/Views/HandlerFieldRoleTest.php
+++ b/core/modules/user/src/Tests/Views/HandlerFieldRoleTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\user\Tests\Views;
 
 use Drupal\Component\Utility\Html;
-use Drupal\views\Views;
 use Drupal\user\Entity\User;
 
 /**
diff --git a/core/modules/user/src/Tests/Views/HandlerFilterRolesTest.php b/core/modules/user/src/Tests/Views/HandlerFilterRolesTest.php
index 3268eecf53f6b0f133164ec3da3ff8b4d8dcf684..b105583d697fcc055ac50aaa31ba24e812ad79bf 100644
--- a/core/modules/user/src/Tests/Views/HandlerFilterRolesTest.php
+++ b/core/modules/user/src/Tests/Views/HandlerFilterRolesTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\user\Entity\Role;
 use Drupal\views\Entity\View;
-use Drupal\views\Views;
 
 /**
  * Tests the roles filter handler.
diff --git a/core/modules/user/src/UserDataInterface.php b/core/modules/user/src/UserDataInterface.php
index e32c4fb399b8b4fe3b02998d99d7cc5fd32fe30d..d7305285f9efbd71bd9ffa5a6719ca47cd6c00c9 100644
--- a/core/modules/user/src/UserDataInterface.php
+++ b/core/modules/user/src/UserDataInterface.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\user;
 
-use Drupal\Core\Database\Connection;
-
 /**
  * Defines the user data service interface.
  */
diff --git a/core/modules/user/tests/src/Unit/Plugin/Core/Entity/UserTest.php b/core/modules/user/tests/src/Unit/Plugin/Core/Entity/UserTest.php
index 4f004a0e34fd57e4100b155f1c4f0d3890e043ce..56c9a6da115c23573bd57ea2b33b35ad4ad7fc70 100644
--- a/core/modules/user/tests/src/Unit/Plugin/Core/Entity/UserTest.php
+++ b/core/modules/user/tests/src/Unit/Plugin/Core/Entity/UserTest.php
@@ -8,8 +8,7 @@
 namespace Drupal\Tests\user\Unit\Plugin\Core\Entity;
 
 use Drupal\Tests\Core\Session\UserSessionTest;
-use Drupal\user\Entity\User;
-  use Drupal\user\RoleInterface;
+use Drupal\user\RoleInterface;
 
   /**
  * @coversDefaultClass \Drupal\user\Entity\User
diff --git a/core/modules/user/user.api.php b/core/modules/user/user.api.php
index 26e7f5a678f04cfcb2d4ce1dfa6d0816278f5f11..aec17b5a0b1361844eb8dc1393085a70e9c55fae 100644
--- a/core/modules/user/user.api.php
+++ b/core/modules/user/user.api.php
@@ -1,7 +1,5 @@
 <?php
 
-use Drupal\Core\Entity\EntityInterface;
-
 /**
  * @file
  * Hooks provided by the User module.
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 7782954f183bb84aae4747f2f3a0ddf9417778f0..bec3b510e4228bcdc4d0876cf0e12f40a89d3fd2 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -7,7 +7,6 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Session\AccountInterface;
diff --git a/core/modules/views/src/Analyzer.php b/core/modules/views/src/Analyzer.php
index 7a2999eb70f3f288c3838d5536e2ace6f488df32..bd0b6ac1c91d3dc24c155343119f03cd0f1cd92a 100644
--- a/core/modules/views/src/Analyzer.php
+++ b/core/modules/views/src/Analyzer.php
@@ -8,7 +8,6 @@
 namespace Drupal\views;
 
 use Drupal\Core\Extension\ModuleHandlerInterface;
-use Drupal\views\ViewExecutable;
 
 /**
  * This tool is a small plugin manager to perform analysis on a view and
diff --git a/core/modules/views/src/Annotation/ViewsAccess.php b/core/modules/views/src/Annotation/ViewsAccess.php
index dcc33b34e7c11a8a0932085177883827fad9085a..7458f27592964b151ef7d715a6ce3ed0d9211bac 100644
--- a/core/modules/views/src/Annotation/ViewsAccess.php
+++ b/core/modules/views/src/Annotation/ViewsAccess.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
 
 /**
  * Defines a Plugin annotation object for views access plugins.
diff --git a/core/modules/views/src/Annotation/ViewsArgumentDefault.php b/core/modules/views/src/Annotation/ViewsArgumentDefault.php
index 1e6215f5e003d8560d8256088bfb3872c3f71b87..54da518883d3457d0ebf9b0110b3151e8deb8eb6 100644
--- a/core/modules/views/src/Annotation/ViewsArgumentDefault.php
+++ b/core/modules/views/src/Annotation/ViewsArgumentDefault.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views argument default plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsArgumentValidator.php b/core/modules/views/src/Annotation/ViewsArgumentValidator.php
index a5f1ee396a94af03cf52acad230c0782e517dd9d..f9fd20cfb6b6b6c4875d5326faa8cf2aff4df303 100644
--- a/core/modules/views/src/Annotation/ViewsArgumentValidator.php
+++ b/core/modules/views/src/Annotation/ViewsArgumentValidator.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views argument validator plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsCache.php b/core/modules/views/src/Annotation/ViewsCache.php
index 6a89799ff1409bbbe6b5c371109bfb63ddf7c9c4..4b5bfdf45ae27f7a818b11102079ce92233198e4 100644
--- a/core/modules/views/src/Annotation/ViewsCache.php
+++ b/core/modules/views/src/Annotation/ViewsCache.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views cache plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsDisplay.php b/core/modules/views/src/Annotation/ViewsDisplay.php
index 42f43617519aff9379187ec82446a2705fa771e2..4cda70291ac38808745a3c1a95b69127c2047c11 100644
--- a/core/modules/views/src/Annotation/ViewsDisplay.php
+++ b/core/modules/views/src/Annotation/ViewsDisplay.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views display plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsExposedForm.php b/core/modules/views/src/Annotation/ViewsExposedForm.php
index f0b06b5767f14595ddd9aa0fce8854cfb940ead4..0fa318e0360084091d3650cb11c323214f1f3ec5 100644
--- a/core/modules/views/src/Annotation/ViewsExposedForm.php
+++ b/core/modules/views/src/Annotation/ViewsExposedForm.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views exposed form plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsPager.php b/core/modules/views/src/Annotation/ViewsPager.php
index cfde4252688a51dbdee7d1111fd42795f0325753..3541f28254a1ceeedfb02d4cfa2a86062188fe29 100644
--- a/core/modules/views/src/Annotation/ViewsPager.php
+++ b/core/modules/views/src/Annotation/ViewsPager.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views pager plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsQuery.php b/core/modules/views/src/Annotation/ViewsQuery.php
index b759ccf9d38193543fc907bd3bebd764237e7b34..2dc0f4cbb33e6c426a6b761c3b4ce5f27935ad8c 100644
--- a/core/modules/views/src/Annotation/ViewsQuery.php
+++ b/core/modules/views/src/Annotation/ViewsQuery.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views query plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsRow.php b/core/modules/views/src/Annotation/ViewsRow.php
index 57c86a70a455519088cb62f7b9a9044f01631eee..1d4c89472af11b9b080c3f1760b966ee2482ef99 100644
--- a/core/modules/views/src/Annotation/ViewsRow.php
+++ b/core/modules/views/src/Annotation/ViewsRow.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views row plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsStyle.php b/core/modules/views/src/Annotation/ViewsStyle.php
index 07d2a167b588199efc59dceb6dcf69f22d48d698..5c6a0b002aeebcc4ae4a26dece6726f2022cf84e 100644
--- a/core/modules/views/src/Annotation/ViewsStyle.php
+++ b/core/modules/views/src/Annotation/ViewsStyle.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views style plugins.
  *
diff --git a/core/modules/views/src/Annotation/ViewsWizard.php b/core/modules/views/src/Annotation/ViewsWizard.php
index f31e18d37e0d24e4a5103aec42802acfa0866415..f76440ba33f48d475b94f8a988e9a9c7578af9cd 100644
--- a/core/modules/views/src/Annotation/ViewsWizard.php
+++ b/core/modules/views/src/Annotation/ViewsWizard.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Annotation;
 
-use Drupal\views\Annotation\ViewsPluginAnnotationBase;
-
 /**
  * Defines a Plugin annotation object for views wizard plugins.
  *
diff --git a/core/modules/views/src/Controller/ViewAjaxController.php b/core/modules/views/src/Controller/ViewAjaxController.php
index 01e69ef05f8c507592a39b73ab2c1f0d1e7e9b5f..bd2f3c18eae134fa3b0320ffc5245b9aee5423fe 100644
--- a/core/modules/views/src/Controller/ViewAjaxController.php
+++ b/core/modules/views/src/Controller/ViewAjaxController.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Controller;
 
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Ajax\ReplaceCommand;
 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
diff --git a/core/modules/views/src/Entity/Render/EntityFieldRenderer.php b/core/modules/views/src/Entity/Render/EntityFieldRenderer.php
index 9e94a6389faf887f44938d0d451380839e726ba8..f2a3778d48f186e74d74b33967e5a61b0c146397 100644
--- a/core/modules/views/src/Entity/Render/EntityFieldRenderer.php
+++ b/core/modules/views/src/Entity/Render/EntityFieldRenderer.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Entity\Render;
 
 use Drupal\Core\Entity\Entity\EntityViewDisplay;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
diff --git a/core/modules/views/src/EventSubscriber/RouteSubscriber.php b/core/modules/views/src/EventSubscriber/RouteSubscriber.php
index db071403956a9168825a5a01cc142004345e7f46..aed4bc12f8a5c61b7a56461f630a369180b0d3ca 100644
--- a/core/modules/views/src/EventSubscriber/RouteSubscriber.php
+++ b/core/modules/views/src/EventSubscriber/RouteSubscriber.php
@@ -15,8 +15,6 @@
 use Drupal\views\ViewExecutable;
 use Drupal\views\Views;
 use Symfony\Component\Routing\RouteCollection;
-use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
-use Symfony\Component\HttpKernel\KernelEvents;
 
 /**
  * Builds up the routes of all views.
diff --git a/core/modules/views/src/Form/ViewsExposedForm.php b/core/modules/views/src/Form/ViewsExposedForm.php
index aee99d6725617c415baa33b2ab4896616e8e3901..e2b91a5705f9c8121c0afda17ab68bb3f948ec02 100644
--- a/core/modules/views/src/Form/ViewsExposedForm.php
+++ b/core/modules/views/src/Form/ViewsExposedForm.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Form;
 
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
diff --git a/core/modules/views/src/Plugin/Block/ViewsBlock.php b/core/modules/views/src/Plugin/Block/ViewsBlock.php
index 4c8a8b4ad2b3e44c3b54a7dd6c3c8d28ff0330d8..20dbace383258bebf9b3f7dececc0eb6edc7968c 100644
--- a/core/modules/views/src/Plugin/Block/ViewsBlock.php
+++ b/core/modules/views/src/Plugin/Block/ViewsBlock.php
@@ -8,10 +8,8 @@
 namespace Drupal\views\Plugin\Block;
 
 use Drupal\Component\Utility\Xss;
-use Drupal\Core\Config\Entity\Query\Query;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Element\View;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides a generic Views block.
diff --git a/core/modules/views/src/Plugin/Derivative/ViewsLocalTask.php b/core/modules/views/src/Plugin/Derivative/ViewsLocalTask.php
index 343dc76dcd8fd4857599e6f5e4687c09a1981806..b0527ee580b463ed227535d00fd6c90739287b10 100644
--- a/core/modules/views/src/Plugin/Derivative/ViewsLocalTask.php
+++ b/core/modules/views/src/Plugin/Derivative/ViewsLocalTask.php
@@ -12,7 +12,6 @@
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
-use Drupal\views\ViewEntityInterface;
 use Drupal\views\Views;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/views/src/Plugin/views/HandlerBase.php b/core/modules/views/src/Plugin/views/HandlerBase.php
index 47e0c13c7d1f2ce29dc0c4bdb9914999b4045ead..b5bb16d6f9b937e4240855e34b17f8caa3db1d8a 100644
--- a/core/modules/views/src/Plugin/views/HandlerBase.php
+++ b/core/modules/views/src/Plugin/views/HandlerBase.php
@@ -18,7 +18,6 @@
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Render\ViewsRenderPipelineMarkup;
 use Drupal\views\ViewExecutable;
-use Drupal\Core\Database\Database;
 use Drupal\views\Views;
 use Drupal\views\ViewsData;
 
diff --git a/core/modules/views/src/Plugin/views/area/Entity.php b/core/modules/views/src/Plugin/views/area/Entity.php
index ed172329daa0cfae19e880d6330d534668506de5..eb2f0f30e5a706bcd94da1b93851c688cd5919cf 100644
--- a/core/modules/views/src/Plugin/views/area/Entity.php
+++ b/core/modules/views/src/Plugin/views/area/Entity.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\area;
 
-use Drupal\Component\Uuid\Uuid;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
diff --git a/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php b/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
index adb9126e4c1ea0c2cd050f0213576ac5ed4d2bd8..2a9fe84aed2f73228ed5ca26550c3f0f9055d8d9 100644
--- a/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
+++ b/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
-use Drupal\views\Plugin\views\PluginBase;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\HandlerBase;
diff --git a/core/modules/views/src/Plugin/views/argument/Date.php b/core/modules/views/src/Plugin/views/argument/Date.php
index c737d38b041844dd80db675c55baa838fa8d62e2..2186fa1afcaea38bb10074353d325e184bdea679 100644
--- a/core/modules/views/src/Plugin/views/argument/Date.php
+++ b/core/modules/views/src/Plugin/views/argument/Date.php
@@ -7,13 +7,11 @@
 
 namespace Drupal\views\Plugin\views\argument;
 
-use Drupal\Core\Database\Database;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Abstract argument handler for dates.
diff --git a/core/modules/views/src/Plugin/views/argument_default/ArgumentDefaultPluginBase.php b/core/modules/views/src/Plugin/views/argument_default/ArgumentDefaultPluginBase.php
index b9ebbbc2ea8c274fee23cca54700b1ccc63602e3..ff58784df3fb5be35e46f2c85561ac9d0c85b3f1 100644
--- a/core/modules/views/src/Plugin/views/argument_default/ArgumentDefaultPluginBase.php
+++ b/core/modules/views/src/Plugin/views/argument_default/ArgumentDefaultPluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Plugin\views\argument_default;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
 use Drupal\views\Plugin\views\PluginBase;
 
diff --git a/core/modules/views/src/Plugin/views/argument_default/Raw.php b/core/modules/views/src/Plugin/views/argument_default/Raw.php
index 77299fd39f86e9cded58ce2af1113da0e8a18e64..d3295c15a6a95b14604e6c66cff6269bba4ebe1f 100644
--- a/core/modules/views/src/Plugin/views/argument_default/Raw.php
+++ b/core/modules/views/src/Plugin/views/argument_default/Raw.php
@@ -13,7 +13,6 @@
 use Drupal\Core\Path\AliasManagerInterface;
 use Drupal\Core\Path\CurrentPathStack;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Default argument plugin to use the raw value from the URL.
diff --git a/core/modules/views/src/Plugin/views/argument_validator/ArgumentValidatorPluginBase.php b/core/modules/views/src/Plugin/views/argument_validator/ArgumentValidatorPluginBase.php
index 7a6cf67f46544f79ee667c9ccb577532551c5fcd..a21dfb0584299d16bc0ee01b1adbe418dfd8e253 100644
--- a/core/modules/views/src/Plugin/views/argument_validator/ArgumentValidatorPluginBase.php
+++ b/core/modules/views/src/Plugin/views/argument_validator/ArgumentValidatorPluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Plugin\views\argument_validator;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
 use Drupal\views\Plugin\views\PluginBase;
 
diff --git a/core/modules/views/src/Plugin/views/argument_validator/Entity.php b/core/modules/views/src/Plugin/views/argument_validator/Entity.php
index b5362b014fce98d4504ca37bb2887e7a9434f3e5..4f918e4c563ee5f8e3a01f654f4f48f18d490b07 100644
--- a/core/modules/views/src/Plugin/views/argument_validator/Entity.php
+++ b/core/modules/views/src/Plugin/views/argument_validator/Entity.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\argument_validator;
 
-use Drupal\Core\Config\Entity\ConfigEntityInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
diff --git a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
index 9b311263916f6bcab7087bf12c3ad15cb0463415..f04232e4fd4a1d7eb5a716c33c6bb3ccc2a52a99 100644
--- a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
+++ b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
@@ -12,7 +12,6 @@
 use Drupal\views\Plugin\views\PluginBase;
 use Drupal\Core\Database\Query\Select;
 use Drupal\views\ResultRow;
-use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * @defgroup views_cache_plugins Views cache plugins
diff --git a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
index 54121c5c1205cb74b5fbf19ac11b456aee4a2e7c..21ea4d25a91949d728d9d498bb10ffb57034a543 100644
--- a/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php
@@ -17,15 +17,12 @@
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Plugin\PluginDependencyTrait;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\Core\Theme\Registry;
 use Drupal\Core\Url;
 use Drupal\views\Form\ViewsForm;
 use Drupal\views\Plugin\views\area\AreaPluginBase;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\PluginBase;
 use Drupal\views\Views;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
-use Symfony\Component\DependencyInjection\Exception\RuntimeException as DependencyInjectionRuntimeException;
 
 /**
  * Base class for views display plugins.
diff --git a/core/modules/views/src/Plugin/views/display/Feed.php b/core/modules/views/src/Plugin/views/display/Feed.php
index 9a02de0933ab58f6d1bf8bb62d8ff2046c1f436c..d01cbb8dbf151ee38c0fe03d7c5ac967dcc18734 100644
--- a/core/modules/views/src/Plugin/views/display/Feed.php
+++ b/core/modules/views/src/Plugin/views/display/Feed.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Views;
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/display/Page.php b/core/modules/views/src/Plugin/views/display/Page.php
index 656105c82e767a76bfa02642405fa64ef4c0db5e..2c45ccfa5fb79bd2adf4f7894026050d3c117dc1 100644
--- a/core/modules/views/src/Plugin/views/display/Page.php
+++ b/core/modules/views/src/Plugin/views/display/Page.php
@@ -13,8 +13,6 @@
 use Drupal\Core\State\StateInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Routing\Route;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/display/PathPluginBase.php b/core/modules/views/src/Plugin/views/display/PathPluginBase.php
index 599e7f08361f198e06652b4a5791cef6f2dec259..aab4f6d0e53d03c6ef2f860852fe739b50acfa42 100644
--- a/core/modules/views/src/Plugin/views/display/PathPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display/PathPluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Plugin\views\display;
 
 use Drupal\Component\Utility\UrlHelper;
-use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Core\Routing\UrlGeneratorTrait;
@@ -17,7 +16,6 @@
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Url;
 use Drupal\views\Views;
-
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
diff --git a/core/modules/views/src/Plugin/views/display_extender/DisplayExtenderPluginBase.php b/core/modules/views/src/Plugin/views/display_extender/DisplayExtenderPluginBase.php
index aebc61442156c0a72c76c1fe1ee66e6dc903ea41..760df48b6469cae18a351687d2ffd47ea55c32cd 100644
--- a/core/modules/views/src/Plugin/views/display_extender/DisplayExtenderPluginBase.php
+++ b/core/modules/views/src/Plugin/views/display_extender/DisplayExtenderPluginBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Plugin\views\display_extender;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\PluginBase;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/exposed_form/ExposedFormPluginBase.php b/core/modules/views/src/Plugin/views/exposed_form/ExposedFormPluginBase.php
index c30f899229fd5a91a3cc42a241437be4140ef601..99a5ad031c449bdf9ec2d0b5c4202161c450b399 100644
--- a/core/modules/views/src/Plugin/views/exposed_form/ExposedFormPluginBase.php
+++ b/core/modules/views/src/Plugin/views/exposed_form/ExposedFormPluginBase.php
@@ -12,9 +12,6 @@
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\Form\ViewsExposedForm;
-use Drupal\views\ViewExecutable;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\PluginBase;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/field/EntityLabel.php b/core/modules/views/src/Plugin/views/field/EntityLabel.php
index 58b968734a2f2b5bc9a213bc80cedfb499c4356e..dc2dd2eb5c9236609cc158e563c697d2b01f2623 100644
--- a/core/modules/views/src/Plugin/views/field/EntityLabel.php
+++ b/core/modules/views/src/Plugin/views/field/EntityLabel.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\Plugin\views\field\FieldPluginBase;
 use Drupal\views\ResultRow;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
diff --git a/core/modules/views/src/Plugin/views/field/FieldPluginBase.php b/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
index 7275bc44cdd89a03fe659b6640916be0dc13f1f6..fb2ec961ab8a5e9b512110153a022b889b3103f2 100644
--- a/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
+++ b/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
@@ -8,13 +8,11 @@
 namespace Drupal\views\Plugin\views\field;
 
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Component\Utility\Xss;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Renderer;
 use Drupal\Core\Url as CoreUrl;
diff --git a/core/modules/views/src/Plugin/views/field/LinkBase.php b/core/modules/views/src/Plugin/views/field/LinkBase.php
index f57710a499f3926e3cd67da8c7ef72d6c55325c6..6ffc30469cda7f0947aa1a348dcf8e927eb57c12 100644
--- a/core/modules/views/src/Plugin/views/field/LinkBase.php
+++ b/core/modules/views/src/Plugin/views/field/LinkBase.php
@@ -8,8 +8,6 @@
 namespace Drupal\views\Plugin\views\field;
 
 use Drupal\Core\Access\AccessManagerInterface;
-use Drupal\Core\Access\AccessResultInterface;
-use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Routing\RedirectDestinationTrait;
diff --git a/core/modules/views/src/Plugin/views/field/MachineName.php b/core/modules/views/src/Plugin/views/field/MachineName.php
index a31d7f25544c4c5a00ca76eebb981c7ada14e20e..d6f980337b06023446e5de709fdabb490352ad35 100644
--- a/core/modules/views/src/Plugin/views/field/MachineName.php
+++ b/core/modules/views/src/Plugin/views/field/MachineName.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\field;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\ResultRow;
 
diff --git a/core/modules/views/src/Plugin/views/filter/Bundle.php b/core/modules/views/src/Plugin/views/filter/Bundle.php
index e328dfc5544b5678dee950bd79b4116c6fdfb244..cfea7a84c12cc6044928a287e1059380147bd37b 100644
--- a/core/modules/views/src/Plugin/views/filter/Bundle.php
+++ b/core/modules/views/src/Plugin/views/filter/Bundle.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\filter;
 
-use Drupal\Core\Config\Entity\ConfigEntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
diff --git a/core/modules/views/src/Plugin/views/filter/NumericFilter.php b/core/modules/views/src/Plugin/views/filter/NumericFilter.php
index 51bd8f791bf0a5e0a5825b4b7f9ce2d224020340..116402843c5ea36612ad6b27297dec142d8692c9 100644
--- a/core/modules/views/src/Plugin/views/filter/NumericFilter.php
+++ b/core/modules/views/src/Plugin/views/filter/NumericFilter.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\filter;
 
-use Drupal\Core\Database\Database;
 use Drupal\Core\Form\FormStateInterface;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/filter/StringFilter.php b/core/modules/views/src/Plugin/views/filter/StringFilter.php
index ffa2a00eaf40bc8d36b74da4de0096805c31f483..406823745acb0aadfea8e516895325517fbab63f 100644
--- a/core/modules/views/src/Plugin/views/filter/StringFilter.php
+++ b/core/modules/views/src/Plugin/views/filter/StringFilter.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Plugin\views\filter;
 
-use Drupal\Core\Database\Database;
 use Drupal\Core\Form\FormStateInterface;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/pager/PagerPluginBase.php b/core/modules/views/src/Plugin/views/pager/PagerPluginBase.php
index 72b578a60eed017852fb60f91180eee1371eacf0..68f856752cfca17952c7c9448a960b5162bd3363 100644
--- a/core/modules/views/src/Plugin/views/pager/PagerPluginBase.php
+++ b/core/modules/views/src/Plugin/views/pager/PagerPluginBase.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\PluginBase;
-use Drupal\views\ViewExecutable;
 
 /**
  * @defgroup views_pager_plugins Views pager plugins
diff --git a/core/modules/views/src/Plugin/views/query/QueryPluginBase.php b/core/modules/views/src/Plugin/views/query/QueryPluginBase.php
index f73f16f70514502cf65610f14c9834b8c2332204..e16b37be09e574773a6cb72af837de26a2964b20 100644
--- a/core/modules/views/src/Plugin/views/query/QueryPluginBase.php
+++ b/core/modules/views/src/Plugin/views/query/QueryPluginBase.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\PluginBase;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Views;
 
diff --git a/core/modules/views/src/Plugin/views/relationship/EntityReverse.php b/core/modules/views/src/Plugin/views/relationship/EntityReverse.php
index 49d552791d4ce2ad6ea1f2f1f23eff87760c0f9c..ffc0cb99737bbee87de6664d6b0bb41163d59dc9 100644
--- a/core/modules/views/src/Plugin/views/relationship/EntityReverse.php
+++ b/core/modules/views/src/Plugin/views/relationship/EntityReverse.php
@@ -8,9 +8,6 @@
 namespace Drupal\views\Plugin\views\relationship;
 
 use Drupal\views\Plugin\ViewsHandlerManager;
-use Drupal\views\Plugin\views\display\DisplayPluginBase;
-use Drupal\views\Plugin\views\relationship\RelationshipPluginBase;
-use Drupal\views\ViewExecutable;
 use Drupal\views\Views;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/core/modules/views/src/Plugin/views/row/RowPluginBase.php b/core/modules/views/src/Plugin/views/row/RowPluginBase.php
index 059a41586b0f5cee02a2fb65e32773d7272e8704..931fd5239c12693892cb4c802726e3c6a8c2b437 100644
--- a/core/modules/views/src/Plugin/views/row/RowPluginBase.php
+++ b/core/modules/views/src/Plugin/views/row/RowPluginBase.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\PluginBase;
-use Drupal\views\ViewExecutable;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/views/src/Plugin/views/style/DefaultSummary.php b/core/modules/views/src/Plugin/views/style/DefaultSummary.php
index 63cf9dc5b6d86fbf41e0e6156413dfc12f80c971..db62f0e933088a5e8aa7781539ba4d021a587351 100644
--- a/core/modules/views/src/Plugin/views/style/DefaultSummary.php
+++ b/core/modules/views/src/Plugin/views/style/DefaultSummary.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Plugin\views\style;
 
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\views\Plugin\views\style\StylePluginBase;
 
 /**
  * The default style plugin for summaries.
diff --git a/core/modules/views/src/Plugin/views/style/Table.php b/core/modules/views/src/Plugin/views/style/Table.php
index 92cd120a224add8422f54079f62e64fc3af4d904..7e9c2e3ccf501cfd171087d792a5ac6308a21ee8 100644
--- a/core/modules/views/src/Plugin/views/style/Table.php
+++ b/core/modules/views/src/Plugin/views/style/Table.php
@@ -7,13 +7,10 @@
 
 namespace Drupal\views\Plugin\views\style;
 
-use Drupal\Component\Plugin\Discovery\DiscoveryInterface;
 use Drupal\Component\Utility\Html;
 use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Plugin\views\wizard\WizardInterface;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Style plugin to render each item as a row in a table.
diff --git a/core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php b/core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php
index 946d752b8b8a3def9c9f8a962ea807b1a366657b..4632db4dbc602bec43736031f844f2aaf14b21ad 100644
--- a/core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php
+++ b/core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php
@@ -15,7 +15,6 @@
 use Drupal\views_ui\ViewUI;
 use Drupal\views\Plugin\views\display\DisplayPluginBase;
 use Drupal\views\Plugin\views\PluginBase;
-use Drupal\views\Plugin\views\wizard\WizardInterface;
 
 /**
  * @defgroup views_wizard_plugins Views wizard plugins
diff --git a/core/modules/views/src/Tests/EventSubscriber/ViewsEntitySchemaSubscriberIntegrationTest.php b/core/modules/views/src/Tests/EventSubscriber/ViewsEntitySchemaSubscriberIntegrationTest.php
index b7e29b54d9f1ddfa9b123dc4f4847c5e0135c67a..1f8491a3d08234cd04bbf3ffb82ef6fbae0b9194 100644
--- a/core/modules/views/src/Tests/EventSubscriber/ViewsEntitySchemaSubscriberIntegrationTest.php
+++ b/core/modules/views/src/Tests/EventSubscriber/ViewsEntitySchemaSubscriberIntegrationTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Entity\EntityTypeEvent;
 use Drupal\Core\Entity\EntityTypeEvents;
 use Drupal\system\Tests\Entity\EntityDefinitionTestTrait;
-use Drupal\views\Entity\View;
 use Drupal\views\Tests\ViewKernelTestBase;
 
 /**
diff --git a/core/modules/views/src/Tests/Handler/FieldDropButtonTest.php b/core/modules/views/src/Tests/Handler/FieldDropButtonTest.php
index 5de614bc3052332fdba43e1d83de01e42947ab57..574f7e4dc7efd5a4a29d2c4656dcdd9b42a96afd 100644
--- a/core/modules/views/src/Tests/Handler/FieldDropButtonTest.php
+++ b/core/modules/views/src/Tests/Handler/FieldDropButtonTest.php
@@ -7,8 +7,6 @@
 
 namespace Drupal\views\Tests\Handler;
 
-use Drupal\views\Tests\ViewTestData;
-
 /**
  * Tests the dropbutton field handler.
  *
diff --git a/core/modules/views/src/Tests/Handler/FieldEntityOperationsTest.php b/core/modules/views/src/Tests/Handler/FieldEntityOperationsTest.php
index e92b0249b40bd0b7f6ce8cd4bbffa8281bf844fa..665c01620e703f7f33c0451d2fcfcad4ec035b14 100644
--- a/core/modules/views/src/Tests/Handler/FieldEntityOperationsTest.php
+++ b/core/modules/views/src/Tests/Handler/FieldEntityOperationsTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Tests\Handler;
 
 use Drupal\Core\Url;
-use Drupal\entity_test\Entity\EntityTest;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\node\Entity\Node;
 
diff --git a/core/modules/views/src/Tests/Plugin/AccessTest.php b/core/modules/views/src/Tests/Plugin/AccessTest.php
index 5ee6c98f89b6976a6219da5d9be1265455135115..b16603d8fc1beddf687f532c9c305897cff2b9ca 100644
--- a/core/modules/views/src/Tests/Plugin/AccessTest.php
+++ b/core/modules/views/src/Tests/Plugin/AccessTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Tests\Plugin;
 
-use Drupal\Core\Cache\Cache;
 use Drupal\views\Tests\ViewTestData;
 use Drupal\views\Views;
 
diff --git a/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php b/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
index 37ce57def4fd18bb9b4711e9d7bb4784d74fab18..019fb44e3834bdfd94c7a2daef7a9b5c4fad599f 100644
--- a/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
+++ b/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Tests\Plugin;
 
-use Drupal\views\Tests\Plugin\PluginTestBase;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/views/src/Tests/Plugin/DisplayPageTest.php b/core/modules/views/src/Tests/Plugin/DisplayPageTest.php
index d04d951259941243f9e2f6cd5b11129abadc5fa0..5ce2d3f2a4abea906a71808a992d2b70ab3df45b 100644
--- a/core/modules/views/src/Tests/Plugin/DisplayPageTest.php
+++ b/core/modules/views/src/Tests/Plugin/DisplayPageTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Session\AnonymousUserSession;
 use Drupal\views\Views;
 use Drupal\views\Tests\ViewKernelTestBase;
-use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 
diff --git a/core/modules/views/src/Tests/Plugin/StyleGridTest.php b/core/modules/views/src/Tests/Plugin/StyleGridTest.php
index ea212ddde7bd7091a5af1d122baf886b4eeac196..6dbac6bd958346eebec2860178c71dc62e3075ca 100644
--- a/core/modules/views/src/Tests/Plugin/StyleGridTest.php
+++ b/core/modules/views/src/Tests/Plugin/StyleGridTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\views\Views;
 use Drupal\views\ViewExecutable;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests the grid style plugin.
diff --git a/core/modules/views/src/Tests/Plugin/ViewsBlockTest.php b/core/modules/views/src/Tests/Plugin/ViewsBlockTest.php
index 9e056a244b3f494faa3a30c92901702cc2cb82f1..1cb8b0962f52a6482cc86ea42420ebb4d42227c7 100644
--- a/core/modules/views/src/Tests/Plugin/ViewsBlockTest.php
+++ b/core/modules/views/src/Tests/Plugin/ViewsBlockTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Tests\Plugin;
 
-use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\views\Plugin\Block\ViewsBlock;
 use Drupal\views\Tests\ViewTestData;
 use Drupal\views\Tests\ViewKernelTestBase;
diff --git a/core/modules/views/src/Tests/Plugin/ViewsFormTest.php b/core/modules/views/src/Tests/Plugin/ViewsFormTest.php
index bbdd42a6c5a36ae14744206dcfe453502bfa0412..eabecb1946ce64c11d01029086f021a0eddd9ca2 100644
--- a/core/modules/views/src/Tests/Plugin/ViewsFormTest.php
+++ b/core/modules/views/src/Tests/Plugin/ViewsFormTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Tests\Plugin;
 
 use Drupal\simpletest\WebTestBase;
-use Drupal\views\Views;
 
 /**
  * Tests Views forms functionality.
diff --git a/core/modules/views/src/Tests/ViewKernelTestBase.php b/core/modules/views/src/Tests/ViewKernelTestBase.php
index 61036e02ff94ebd84bbec2496128867babe6b610..fe794ea7ddb81ed104c3e56c2e28018cf0a2e6a1 100644
--- a/core/modules/views/src/Tests/ViewKernelTestBase.php
+++ b/core/modules/views/src/Tests/ViewKernelTestBase.php
@@ -8,10 +8,8 @@
 namespace Drupal\views\Tests;
 
 use Drupal\Core\Database\Query\SelectInterface;
-use Drupal\views\ViewExecutable;
 use Drupal\views\ViewsBundle;
 use Drupal\simpletest\KernelTestBase;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Defines a base class for Views unit testing.
diff --git a/core/modules/views/src/Tests/ViewRenderTest.php b/core/modules/views/src/Tests/ViewRenderTest.php
index bbf3fe14fb10b9f9fdf58ffab328c6c2c7a37125..5c42cce8e20d6912217875e5c710880cc553638a 100644
--- a/core/modules/views/src/Tests/ViewRenderTest.php
+++ b/core/modules/views/src/Tests/ViewRenderTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Tests;
 
-use Drupal\views\Tests\ViewTestBase;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/views/src/Tests/ViewResultAssertionTrait.php b/core/modules/views/src/Tests/ViewResultAssertionTrait.php
index 8525e80b9ba6c710b641c7e57ac11f4954da2400..66685fa9babab853b92d2af39846d9329e5108f5 100644
--- a/core/modules/views/src/Tests/ViewResultAssertionTrait.php
+++ b/core/modules/views/src/Tests/ViewResultAssertionTrait.php
@@ -8,7 +8,6 @@
 namespace Drupal\views\Tests;
 
 use Drupal\views\Plugin\views\field\Field;
-use Drupal\views\ViewExecutable;
 
 /**
  * Provides a class for assertions to check for the expected result of a View.
diff --git a/core/modules/views/src/Tests/ViewStorageTest.php b/core/modules/views/src/Tests/ViewStorageTest.php
index 08432c4fb9bee508d6202ef449e327d2d4326312..7728b1f5c10dc4aca7e304350a8baa7a249c6f22 100644
--- a/core/modules/views/src/Tests/ViewStorageTest.php
+++ b/core/modules/views/src/Tests/ViewStorageTest.php
@@ -8,11 +8,8 @@
 namespace Drupal\views\Tests;
 
 use Drupal\Core\Entity\EntityTypeInterface;
-use Drupal\Core\Config\Entity\ConfigEntityStorage;
 use Drupal\views\Entity\View;
 use Drupal\views\Plugin\views\display\Page;
-use Drupal\views\Plugin\views\display\DefaultDisplay;
-use Drupal\views\Plugin\views\display\Feed;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/views/src/Tests/ViewsTemplateTest.php b/core/modules/views/src/Tests/ViewsTemplateTest.php
index c67befef1d8d4ee7f7aa7a3df9670fbfea344733..17c2cdfcffe072aad6feca214b10e7d9f07d4ad0 100644
--- a/core/modules/views/src/Tests/ViewsTemplateTest.php
+++ b/core/modules/views/src/Tests/ViewsTemplateTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\views\Tests;
 
-use Drupal\views\Tests\ViewTestBase;
 use Drupal\views\Views;
 
 /**
diff --git a/core/modules/views/src/ViewExecutable.php b/core/modules/views/src/ViewExecutable.php
index d2d1fa575e71d2de68d4155cf9ef790d754f338d..2646c5616a0f42b1426eacce57ccf766c7d3ce3c 100644
--- a/core/modules/views/src/ViewExecutable.php
+++ b/core/modules/views/src/ViewExecutable.php
@@ -8,15 +8,11 @@
 namespace Drupal\views;
 
 use Drupal\Component\Utility\Html;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\Core\Url;
 use Drupal\views\Plugin\views\display\DisplayRouterInterface;
-use Drupal\views\Plugin\views\query\QueryPluginBase;
-use Drupal\views\ViewEntityInterface;
 use Drupal\Component\Utility\Tags;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
diff --git a/core/modules/views/src/ViewExecutableFactory.php b/core/modules/views/src/ViewExecutableFactory.php
index 0975a48d2939e62bac97c003b7279d975c48ac6e..0d91100f4e792ac284cad4d95cff6ae75625195a 100644
--- a/core/modules/views/src/ViewExecutableFactory.php
+++ b/core/modules/views/src/ViewExecutableFactory.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\views\ViewEntityInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
 
 /**
diff --git a/core/modules/views/tests/modules/views_test_data/views_test_data.module b/core/modules/views/tests/modules/views_test_data/views_test_data.module
index ecf65b1e4578ce2ce92bba9dfff9b7ffaabf7b21..5853fd5ebdb55151e9182894eb724c3541f14b30 100644
--- a/core/modules/views/tests/modules/views_test_data/views_test_data.module
+++ b/core/modules/views/tests/modules/views_test_data/views_test_data.module
@@ -5,8 +5,6 @@
  * Helper module for Views tests.
  */
 
-use Drupal\views\ViewExecutable;
-
 /**
  * Access callback for the generic handler test.
  *
diff --git a/core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php b/core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php
index d285021ae57f502f2bea3397d9c14bbf0de515d1..98dcb1de69657d0d9bd4276049429936d7da11a2 100644
--- a/core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php
+++ b/core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\GeneratedUrl;
 use Drupal\Core\Language\Language;
-use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\Url;
 use Drupal\Core\Utility\LinkGenerator;
diff --git a/core/modules/views/views.module b/core/modules/views/views.module
index 30c92f3da45512e95ed457f9cf42d7890c026b86..7ee7671bd35603c0253edf353da044178a456c9e 100644
--- a/core/modules/views/views.module
+++ b/core/modules/views/views.module
@@ -11,17 +11,13 @@
 
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Core\Cache\Cache;
 use Drupal\Core\Database\Query\AlterableInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Url;
 use Drupal\views\Plugin\Derivative\ViewsLocalTask;
-use Drupal\Core\Template\AttributeArray;
-use Drupal\views\Plugin\views\display\Page;
 use Drupal\views\ViewExecutable;
-use Drupal\Component\Plugin\Exception\PluginException;
 use Drupal\views\Entity\View;
 use Drupal\views\Render\ViewsRenderPipelineMarkup;
 use Drupal\views\Views;
diff --git a/core/modules/views_ui/admin.inc b/core/modules/views_ui/admin.inc
index 6170ed4f846adf8fef70df02e92ec38adce5ebd9..01bcf7a6600aa05f8c48dd84d52c96d76ce24c9b 100644
--- a/core/modules/views_ui/admin.inc
+++ b/core/modules/views_ui/admin.inc
@@ -6,12 +6,8 @@
  */
 
 use Drupal\Component\Utility\NestedArray;
-use Drupal\Component\Utility\Tags;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
-use Drupal\views\ViewExecutable;
-use Drupal\views\Views;
-use Drupal\taxonomy\Entity\Vocabulary;
 
 /**
  * Converts a form element in the add view wizard to be AJAX-enabled.
diff --git a/core/modules/views_ui/src/Form/Ajax/Analyze.php b/core/modules/views_ui/src/Form/Ajax/Analyze.php
index b53800dfb04045939b89fd3fee45dd341cdd6ef1..7daddce239a4b5dbab002fe621cf7aec173db21b 100644
--- a/core/modules/views_ui/src/Form/Ajax/Analyze.php
+++ b/core/modules/views_ui/src/Form/Ajax/Analyze.php
@@ -9,8 +9,6 @@
 
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Views;
-use Drupal\views_ui\ViewUI;
-use Drupal\views\Analyzer;
 
 /**
  * Displays analysis information for a view.
diff --git a/core/modules/views_ui/src/Form/Ajax/EditDetails.php b/core/modules/views_ui/src/Form/Ajax/EditDetails.php
index 6790029c9a5b8097656d54015fd39ed0fa8d5137..9e25ecebdd477200c16619f815bd45f01426a8fe 100644
--- a/core/modules/views_ui/src/Form/Ajax/EditDetails.php
+++ b/core/modules/views_ui/src/Form/Ajax/EditDetails.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\views\Views;
-use Drupal\views_ui\ViewUI;
 
 /**
  * Provides a form for editing the details of a View.
diff --git a/core/modules/views_ui/src/Form/Ajax/ReorderDisplays.php b/core/modules/views_ui/src/Form/Ajax/ReorderDisplays.php
index d3db3dd599b5fa611beaec639776931e4ba3678f..62746378e337e55bf902142e3f17ea8fb74f534b 100644
--- a/core/modules/views_ui/src/Form/Ajax/ReorderDisplays.php
+++ b/core/modules/views_ui/src/Form/Ajax/ReorderDisplays.php
@@ -10,7 +10,6 @@
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
-use Drupal\views_ui\ViewUI;
 
 /**
  * Displays the display reorder form.
diff --git a/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php b/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
index 565329f67a6862acc64581a797e944190326d785..b3edb6471752cc2657da8c46d367e32e869ed00e 100644
--- a/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
+++ b/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\RenderContext;
-use Drupal\views_ui\ViewUI;
 use Drupal\views\ViewEntityInterface;
 use Drupal\views\Ajax;
 use Drupal\Core\Ajax\AjaxResponse;
diff --git a/core/modules/views_ui/src/Tests/QueryTest.php b/core/modules/views_ui/src/Tests/QueryTest.php
index bed04223c5dd59cdb1da840b10e3d546d3425d5b..cda040c960f728f8750906726bd6a78fd85df383 100644
--- a/core/modules/views_ui/src/Tests/QueryTest.php
+++ b/core/modules/views_ui/src/Tests/QueryTest.php
@@ -9,8 +9,6 @@
 
 use Drupal\views\Views;
 use Drupal\views\Entity\View;
-use Drupal\views\Tests\ViewTestBase;
-use Drupal\views_test_data\Plugin\views\query\QueryTest as QueryTestPlugin;
 
 /**
  * Tests query plugins.
diff --git a/core/modules/views_ui/src/Tests/ViewEditTest.php b/core/modules/views_ui/src/Tests/ViewEditTest.php
index ee5cc601443f19bc8175581803207dc051416dc1..71dcaa006d837e973c24405e35bab26955cbd33d 100644
--- a/core/modules/views_ui/src/Tests/ViewEditTest.php
+++ b/core/modules/views_ui/src/Tests/ViewEditTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\views\Entity\View;
-use Drupal\views\Views;
 
 /**
  * Tests some general functionality of editing views, like deleting a view.
diff --git a/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php b/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
index cb26b5890f52822545414fcb557b4c4b2d0ad536..c6d7726e976a8e064f72e73679818feda8aad1ca 100644
--- a/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
+++ b/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
@@ -10,9 +10,7 @@
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Tests\UnitTestCase;
 use Drupal\views\Entity\View;
-use Drupal\views\ViewExecutable;
 use Drupal\views_ui\ViewUI;
-use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 
 /**
diff --git a/core/modules/views_ui/views_ui.module b/core/modules/views_ui/views_ui.module
index 57a84ed3cb852c7d62b2a041e883f6c51ae68a71..60fdc51a6cd6b2cfc90ee6c825ae5a57f5ba4373 100644
--- a/core/modules/views_ui/views_ui.module
+++ b/core/modules/views_ui/views_ui.module
@@ -10,7 +10,6 @@
 use Drupal\Core\Url;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Analyzer;
-use Drupal\Component\Utility\Xss;
 
 /**
  * Implements hook_help().
diff --git a/core/profiles/standard/standard.install b/core/profiles/standard/standard.install
index fa8c7560be1b0996b12bdb76b79376f23b17fe31..744963a08b1836c03a64e798a4410ab1d5256bbb 100644
--- a/core/profiles/standard/standard.install
+++ b/core/profiles/standard/standard.install
@@ -4,7 +4,6 @@
  * Install, update and uninstall functions for the standard installation profile.
  */
 
-use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\user\Entity\User;
 use Drupal\user\RoleInterface;
 
diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index 1b931488f2ab99c9bde8a4ba452179d0fe9c2a89..9ca309f487f8111da24ac8e334f2296c5b92faf4 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -9,8 +9,6 @@
 use Drupal\Component\Utility\Timer;
 use Drupal\Component\Uuid\Php;
 use Drupal\Core\Database\Database;
-use Drupal\Core\Form\FormState;
-use Drupal\Core\Site\Settings;
 use Drupal\Core\StreamWrapper\PublicStream;
 use Drupal\Core\Test\TestRunnerKernel;
 use Drupal\simpletest\Form\SimpletestResultsForm;
diff --git a/core/tests/Drupal/KernelTests/Component/Utility/SafeMarkupKernelTest.php b/core/tests/Drupal/KernelTests/Component/Utility/SafeMarkupKernelTest.php
index 273a240faea30612f8352e3fa13085160834eeff..c337f75be9d7231d8e3239b66d2dbba24a0dbd3e 100644
--- a/core/tests/Drupal/KernelTests/Component/Utility/SafeMarkupKernelTest.php
+++ b/core/tests/Drupal/KernelTests/Component/Utility/SafeMarkupKernelTest.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\KernelTests\Component\Utility;
 
-use Drupal\Component\FileCache\FileCacheFactory;
 use Drupal\Component\Utility\SafeMarkup;
-use Drupal\Core\Site\Settings;
 use Drupal\Core\Url;
 use Drupal\KernelTests\KernelTestBase;
 
diff --git a/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php b/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
index 77270c34f9b241bc22e2af8dc34ce7f92925045a..25577371eca62eaba3892dfef8a2b3c65a5ce208 100644
--- a/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
+++ b/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
@@ -7,11 +7,9 @@
 
 namespace Drupal\KernelTests\Config;
 
-use Drupal\Component\FileCache\FileCacheFactory;
 use Drupal\Core\Config\FileStorage;
 use Drupal\Core\Config\InstallStorage;
 use Drupal\Core\Config\StorageInterface;
-use Drupal\Core\Site\Settings;
 use Drupal\KernelTests\AssertConfigTrait;
 use Drupal\KernelTests\KernelTestBase;
 
diff --git a/core/tests/Drupal/Tests/Component/DependencyInjection/PhpArrayContainerTest.php b/core/tests/Drupal/Tests/Component/DependencyInjection/PhpArrayContainerTest.php
index 8ad93b3acf7270c5d7504bcc67567938ad0e4673..3a9f4fc861546d207fbd6b98eca2f553c5d48489 100644
--- a/core/tests/Drupal/Tests/Component/DependencyInjection/PhpArrayContainerTest.php
+++ b/core/tests/Drupal/Tests/Component/DependencyInjection/PhpArrayContainerTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Component\DependencyInjection;
 
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\DependencyInjection\Exception\LogicException;
 
 /**
  * @coversDefaultClass \Drupal\Component\DependencyInjection\PhpArrayContainer
diff --git a/core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php b/core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php
index 6009e65436c0c6555015b521eea49eb5a55f79d6..f36d8368f63b5e1fa1664e3640370fd8d8e8fd57 100644
--- a/core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php
+++ b/core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php
@@ -10,8 +10,6 @@
 use Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\EventDispatcher\Event;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\EventDispatcher\Tests\AbstractEventDispatcherTest;
 use Symfony\Component\EventDispatcher\Tests\CallableClass;
 use Symfony\Component\EventDispatcher\Tests\TestEventListener;
diff --git a/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php b/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
index 3a03535e6f150f1743e8fdab4298dc09d213a7fa..b0c4b98df9f6e9d6114bc726e4f42f99b3e4692c 100644
--- a/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Access\AccessCheckInterface;
 use Drupal\Core\Access\AccessResult;
-use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Access\CheckProvider;
 use Drupal\Core\Cache\Context\CacheContextsManager;
 use Drupal\Core\Routing\RouteMatch;
diff --git a/core/tests/Drupal/Tests/Core/Access/CsrfTokenGeneratorTest.php b/core/tests/Drupal/Tests/Core/Access/CsrfTokenGeneratorTest.php
index ec2abec46604c02e3e8fd70b47c8b8172429321a..7a41edcd2d7bf47656d9efdc0752ef76cc3d3f64 100644
--- a/core/tests/Drupal/Tests/Core/Access/CsrfTokenGeneratorTest.php
+++ b/core/tests/Drupal/Tests/Core/Access/CsrfTokenGeneratorTest.php
@@ -11,7 +11,6 @@
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\Access\CsrfTokenGenerator;
 use Drupal\Component\Utility\Crypt;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests the CsrfTokenGenerator class.
diff --git a/core/tests/Drupal/Tests/Core/Ajax/AjaxResponseTest.php b/core/tests/Drupal/Tests/Core/Ajax/AjaxResponseTest.php
index acf3290b4a0366458532e130a507c93660dd9eed..ddb9c24f041ebfa4633c96b9767e09b87799884a 100644
--- a/core/tests/Drupal/Tests/Core/Ajax/AjaxResponseTest.php
+++ b/core/tests/Drupal/Tests/Core/Ajax/AjaxResponseTest.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\EventSubscriber\AjaxResponseSubscriber;
-use Drupal\Core\Render\Element\Ajax;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
diff --git a/core/tests/Drupal/Tests/Core/Cache/CacheTest.php b/core/tests/Drupal/Tests/Core/Cache/CacheTest.php
index 6c30996cc544a4cb860ab825b7f99ba1503e6413..5c84745c74702635b9ff3cfec6514ee821f3170c 100644
--- a/core/tests/Drupal/Tests/Core/Cache/CacheTest.php
+++ b/core/tests/Drupal/Tests/Core/Cache/CacheTest.php
@@ -7,10 +7,8 @@
 
 namespace Drupal\Tests\Core\Cache;
 
-use Drupal\Component\Assertion\Inspector;
 use Drupal\Core\Cache\Cache;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 
 /**
  * @coversDefaultClass \Drupal\Core\Cache\Cache
diff --git a/core/tests/Drupal/Tests/Core/Condition/ConditionAccessResolverTraitTest.php b/core/tests/Drupal/Tests/Core/Condition/ConditionAccessResolverTraitTest.php
index b3c4706bbc668201e493f34d7ce4a5623060f2b0..e8b4a2ffa84b36bf0ef04f46f8fc904e61c29c27 100644
--- a/core/tests/Drupal/Tests/Core/Condition/ConditionAccessResolverTraitTest.php
+++ b/core/tests/Drupal/Tests/Core/Condition/ConditionAccessResolverTraitTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Condition;
 
 use Drupal\Component\Plugin\Exception\ContextException;
-use Drupal\Core\Condition\ConditionAccessResolverTrait;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Config/ConfigTest.php b/core/tests/Drupal/Tests/Core/Config/ConfigTest.php
index 06c2cbb0ca922f6478e79e6fcc86a9fbbec698d6..a7ff94b79e385d36c1b3a93d2fff82f5dc79465a 100644
--- a/core/tests/Drupal/Tests/Core/Config/ConfigTest.php
+++ b/core/tests/Drupal/Tests/Core/Config/ConfigTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Render\Markup;
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\Config\Config;
-use Drupal\Component\Utility\SafeMarkup;
 
 /**
  * Tests the Config.
diff --git a/core/tests/Drupal/Tests/Core/Database/ConnectionTest.php b/core/tests/Drupal/Tests/Core/Database/ConnectionTest.php
index 24ba469aefe6c8b150cd77b4bcfe8fd5e943380c..a91e241c607389e23c0a6aca818c336f1891617e 100644
--- a/core/tests/Drupal/Tests/Core/Database/ConnectionTest.php
+++ b/core/tests/Drupal/Tests/Core/Database/ConnectionTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Database;
 
 use Drupal\Tests\Core\Database\Stub\StubConnection;
-use Drupal\Tests\Core\Database\Stub\StubPDO;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Database/Driver/pgsql/PostgresqlConnectionTest.php b/core/tests/Drupal/Tests/Core/Database/Driver/pgsql/PostgresqlConnectionTest.php
index b17726146dbe0dd7331dba69cc1c5dec8bbf9cca..34a59feccf9b9aeb9c4f7a01c026f374889c5025 100644
--- a/core/tests/Drupal/Tests/Core/Database/Driver/pgsql/PostgresqlConnectionTest.php
+++ b/core/tests/Drupal/Tests/Core/Database/Driver/pgsql/PostgresqlConnectionTest.php
@@ -7,7 +7,6 @@
 namespace Drupal\Tests\Core\Database\Driver\pgsql;
 
 use Drupal\Core\Database\Driver\pgsql\Connection;
-use Drupal\Tests\Core\Database\Stub\StubPDO;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/BackendCompilerPassTest.php b/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/BackendCompilerPassTest.php
index ae11ee562784db1811ee4213af428f842e200e5e..2efb13f28a994144e17aa1d55e893858a1bdbf5c 100644
--- a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/BackendCompilerPassTest.php
+++ b/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/BackendCompilerPassTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\DependencyInjection\Compiler;
 
-use Drupal\Core\Database\Driver\sqlite\Connection;
 use Drupal\Core\DependencyInjection\Compiler\BackendCompilerPass;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\DependencyInjection\Alias;
diff --git a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/ProxyServicesPassTest.php b/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/ProxyServicesPassTest.php
index 2567513ceaf305e362ae1cb643c2605574592027..320ce70bf0219946090e7cd3e9b8ca3051e00e28 100644
--- a/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/ProxyServicesPassTest.php
+++ b/core/tests/Drupal/Tests/Core/DependencyInjection/Compiler/ProxyServicesPassTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\DependencyInjection\Compiler\ProxyServicesPass;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\DependencyInjection\Reference;
 
 /**
  * @coversDefaultClass \Drupal\Core\DependencyInjection\Compiler\ProxyServicesPass
diff --git a/core/tests/Drupal/Tests/Core/Entity/EntityUnitTest.php b/core/tests/Drupal/Tests/Core/Entity/EntityUnitTest.php
index 3a2121193df7d1524af53fc35ae6d71f7b36bef0..3f1e2e0f2109ed874ff9f17e00b33d0795b6ceff 100644
--- a/core/tests/Drupal/Tests/Core/Entity/EntityUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/EntityUnitTest.php
@@ -11,9 +11,7 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Entity\Entity;
-use Drupal\Core\Entity\Exception\NoCorrespondingEntityClassException;
 use Drupal\Core\Language\Language;
-use Drupal\entity_test\Entity\EntityTest;
 use Drupal\entity_test\Entity\EntityTestMul;
 use Drupal\Tests\UnitTestCase;
 
diff --git a/core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php b/core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php
index 330695ec6588313ca24cff3e6e3a8938c3e8e829..32c8d5ee3067dd87243b994cdda348fc336a9877 100644
--- a/core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php
@@ -6,8 +6,8 @@
  */
 
 namespace Drupal\Tests\Core\Entity\Sql;
+
 use Drupal\Core\Entity\Sql\DefaultTableMapping;
-use Drupal\Core\Entity\Sql\SqlContentEntityStorageException;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageTest.php b/core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageTest.php
index 16f66c385fd65b5c3350c4e5a64f2fae9de2596d..34013c488a9de8b38a528a51fdc3f39e39695f0e 100644
--- a/core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageTest.php
@@ -11,10 +11,7 @@
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
-use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
-use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\Language\Language;
-use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 
diff --git a/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php b/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
index 672e20bf783dab25eb3e88e4041af54dff0448e5..863ae628c23a732183b28208f7b822c31b49cc2d 100644
--- a/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
@@ -7,11 +7,9 @@
 
 namespace Drupal\Tests\Core\Entity\TypedData;
 
-use Drupal\Core\Access\AccessResult;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Entity\Plugin\DataType\EntityAdapter;
 use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\Language\Language;
diff --git a/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php b/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
index 8d0f6bbfc6e2032782d65bc2931c4691a7a1e011..035965f386785f05ec27e5a6345c64cae413b9ea 100644
--- a/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
+++ b/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\Form\EventSubscriber;
 
-use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Form\EventSubscriber\FormAjaxSubscriber;
 use Drupal\Core\Form\Exception\BrokenPostRequestException;
@@ -18,7 +17,6 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
-use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 use Symfony\Component\HttpKernel\Exception\HttpException;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 
diff --git a/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php b/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
index c6032f0d96aecb30ac1e5c68f26ee258d2f9d215..71c90bf5f27e1a0a7e474c05a08d996b40bdc062 100644
--- a/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
+++ b/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\Form;
 
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Form\FormCache;
 use Drupal\Core\Form\FormState;
 use Drupal\Tests\UnitTestCase;
diff --git a/core/tests/Drupal/Tests/Core/Form/FormTestBase.php b/core/tests/Drupal/Tests/Core/Form/FormTestBase.php
index 83aec87c503d24dacbe6b1c1d6b3d5d6dfdddb8a..54f6366d3b40d5dc029d33ec8e2291cd1e7bd9cc 100644
--- a/core/tests/Drupal/Tests/Core/Form/FormTestBase.php
+++ b/core/tests/Drupal/Tests/Core/Form/FormTestBase.php
@@ -12,11 +12,9 @@
 use Drupal\Core\Form\FormInterface;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Session\AccountInterface;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
-use Symfony\Component\HttpFoundation\Response;
 
 /**
  * Provides a base class for testing form functionality.
diff --git a/core/tests/Drupal/Tests/Core/Logger/LoggerChannelFactoryTest.php b/core/tests/Drupal/Tests/Core/Logger/LoggerChannelFactoryTest.php
index 6e8fe49568e1d39409d39bc3ff348a9666da4420..00bce3f7c10c217808db8150c9528dcc7864e582 100644
--- a/core/tests/Drupal/Tests/Core/Logger/LoggerChannelFactoryTest.php
+++ b/core/tests/Drupal/Tests/Core/Logger/LoggerChannelFactoryTest.php
@@ -8,9 +8,7 @@
 namespace Drupal\Tests\Core\Logger;
 
 use Drupal\Core\Logger\LoggerChannelFactory;
-use Drupal\Core\Session\AccountInterface;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\HttpFoundation\Request;
 
 /**
  * @coversDefaultClass \Drupal\Core\Logger\LoggerChannelFactory
diff --git a/core/tests/Drupal/Tests/Core/Menu/ContextualLinkDefaultTest.php b/core/tests/Drupal/Tests/Core/Menu/ContextualLinkDefaultTest.php
index 7a90abb045545bdbfd0d2f28d916578697785cc4..fddfff24ba50e6065c42ae29deb23c53d4d4c807 100644
--- a/core/tests/Drupal/Tests/Core/Menu/ContextualLinkDefaultTest.php
+++ b/core/tests/Drupal/Tests/Core/Menu/ContextualLinkDefaultTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Menu\ContextualLinkDefault;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Menu/LocalActionDefaultTest.php b/core/tests/Drupal/Tests/Core/Menu/LocalActionDefaultTest.php
index 1d1c4dd72906c6581d808917d1fb24b69fec30d7..f4854bbf4be8f60e5c635364863a09f326466428 100644
--- a/core/tests/Drupal/Tests/Core/Menu/LocalActionDefaultTest.php
+++ b/core/tests/Drupal/Tests/Core/Menu/LocalActionDefaultTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Menu\LocalActionDefault;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php b/core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php
index 24a09f25cbaed0a158de580dae32ff66fe615e28..dcc4f55ddd773cdb2cfa0e7e3a0ca170b5092702 100644
--- a/core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php
@@ -14,7 +14,6 @@
 use Drupal\Core\Access\AccessResultForbidden;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Menu\LocalActionManager;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
diff --git a/core/tests/Drupal/Tests/Core/Menu/LocalTaskIntegrationTestBase.php b/core/tests/Drupal/Tests/Core/Menu/LocalTaskIntegrationTestBase.php
index 69cc9c586c84152caf8951b6b18533f40220c3a9..3a2388d13f7838453bdfb18ede30548eca5c39a0 100644
--- a/core/tests/Drupal/Tests/Core/Menu/LocalTaskIntegrationTestBase.php
+++ b/core/tests/Drupal/Tests/Core/Menu/LocalTaskIntegrationTestBase.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\Menu;
 
-use Drupal\Core\Language\Language;
 use Drupal\Core\Plugin\Discovery\ContainerDerivativeDiscoveryDecorator;
 use Drupal\Core\Plugin\Discovery\YamlDiscovery;
 use Drupal\Tests\UnitTestCase;
diff --git a/core/tests/Drupal/Tests/Core/Menu/LocalTaskManagerTest.php b/core/tests/Drupal/Tests/Core/Menu/LocalTaskManagerTest.php
index c69dcf2be3a03b3eb9f109e4364fa37c701a9970..04f1b162a1c2cf2259eb9dff69b59a908eea877a 100644
--- a/core/tests/Drupal/Tests/Core/Menu/LocalTaskManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/Menu/LocalTaskManagerTest.php
@@ -21,7 +21,6 @@
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
-use Zend\Stdlib\ArrayObject;
 
 /**
  * @coversDefaultClass \Drupal\Core\Menu\LocalTaskManager
diff --git a/core/tests/Drupal/Tests/Core/Plugin/Discovery/DerivativeDiscoveryDecoratorTest.php b/core/tests/Drupal/Tests/Core/Plugin/Discovery/DerivativeDiscoveryDecoratorTest.php
index 4cc05ad713ed4a770e3f7f232e02f8b7d433d5df..70d01ec119e45269487049d62d98b5bd84bd337d 100644
--- a/core/tests/Drupal/Tests/Core/Plugin/Discovery/DerivativeDiscoveryDecoratorTest.php
+++ b/core/tests/Drupal/Tests/Core/Plugin/Discovery/DerivativeDiscoveryDecoratorTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Plugin\Discovery;
 
 use Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator;
-use Drupal\Component\Plugin\Exception\InvalidDeriverException;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Render/BubbleableMetadataTest.php b/core/tests/Drupal/Tests/Core/Render/BubbleableMetadataTest.php
index 72e589375133cfe5002509a7cba7e6e666297e3e..34eec8a35be23113ee2a77a510d8efe1e34ddd15 100644
--- a/core/tests/Drupal/Tests/Core/Render/BubbleableMetadataTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/BubbleableMetadataTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Render;
 
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Tests\UnitTestCase;
diff --git a/core/tests/Drupal/Tests/Core/Render/Element/TableSelectTest.php b/core/tests/Drupal/Tests/Core/Render/Element/TableSelectTest.php
index 649a57f9d7ab1d8e86878133636a4dfd8fd3e6d3..2040ab64d1d619ab4d435f3612e7b4fb5cf2696a 100644
--- a/core/tests/Drupal/Tests/Core/Render/Element/TableSelectTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/Element/TableSelectTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Link;
 use Drupal\Core\Render\Element\Tableselect;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
-use Drupal\Core\StringTranslation\TranslationWrapper;
 use Drupal\Core\Url;
 use Drupal\Tests\UnitTestCase;
 
diff --git a/core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php b/core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php
index c621e626539811965a0f97ad498fd79ddf7724bf..5867b2bea335548677ca1214e6b7546fa690a64c 100644
--- a/core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php
@@ -10,7 +10,6 @@
 use Drupal\Core\Cache\MemoryBackend;
 use Drupal\Core\KeyValueStore\KeyValueMemoryFactory;
 use Drupal\Core\Render\Element;
-use Drupal\Core\Render\Renderer;
 use Drupal\Core\State\State;
 use Drupal\Core\Cache\Cache;
 
diff --git a/core/tests/Drupal/Tests/Core/Render/RendererTest.php b/core/tests/Drupal/Tests/Core/Render/RendererTest.php
index 145a8ab656e0bb81e9756a13885b8129e208ab1a..92b1625f60b74014fe7bd779decd979c409c1dcf 100644
--- a/core/tests/Drupal/Tests/Core/Render/RendererTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/RendererTest.php
@@ -11,7 +11,6 @@
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Access\AccessResultInterface;
 use Drupal\Core\Cache\Cache;
-use Drupal\Core\Cache\CacheableDependencyInterface;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\Template\Attribute;
diff --git a/core/tests/Drupal/Tests/Core/Routing/ContentTypeHeaderMatcherTest.php b/core/tests/Drupal/Tests/Core/Routing/ContentTypeHeaderMatcherTest.php
index 02775850fda337ac58a781a484a419287c0f1c1a..1f734e7af45364538fff66ba528725eab002b5ad 100644
--- a/core/tests/Drupal/Tests/Core/Routing/ContentTypeHeaderMatcherTest.php
+++ b/core/tests/Drupal/Tests/Core/Routing/ContentTypeHeaderMatcherTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Routing;
 
 use Drupal\Core\Routing\ContentTypeHeaderMatcher;
-use Drupal\Tests\Core\Routing\RoutingFixtures;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\HttpFoundation\Request;
 
diff --git a/core/tests/Drupal/Tests/Core/Routing/CurrentRouteMatchTest.php b/core/tests/Drupal/Tests/Core/Routing/CurrentRouteMatchTest.php
index cba533ca6140cdb6a039e27d8ba3b7b87d84e12e..b0ad0402c9e5ba4ec2db199dd003a56c5eeaf1e7 100644
--- a/core/tests/Drupal/Tests/Core/Routing/CurrentRouteMatchTest.php
+++ b/core/tests/Drupal/Tests/Core/Routing/CurrentRouteMatchTest.php
@@ -8,8 +8,6 @@
 namespace Drupal\Tests\Core\Routing;
 
 use Drupal\Core\Routing\CurrentRouteMatch;
-use Drupal\Core\Routing\RouteMatch;
-use Drupal\Tests\UnitTestCase;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
diff --git a/core/tests/Drupal/Tests/Core/Routing/RouteMatchTest.php b/core/tests/Drupal/Tests/Core/Routing/RouteMatchTest.php
index a2ca66555c9e03f201b4bc4901db08a04ba8668e..f475ec0c3edfff50d7622daa202249e5fac117c0 100644
--- a/core/tests/Drupal/Tests/Core/Routing/RouteMatchTest.php
+++ b/core/tests/Drupal/Tests/Core/Routing/RouteMatchTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Routing;
 
 use Drupal\Core\Routing\RouteMatch;
-use Drupal\Tests\UnitTestCase;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
diff --git a/core/tests/Drupal/Tests/Core/Routing/RouteMatchTestBase.php b/core/tests/Drupal/Tests/Core/Routing/RouteMatchTestBase.php
index 519ae4e6af76530be76ef09912d9952d1a9f663f..846d46a9ebb4311e9b85f59ceee379a78a749eb9 100644
--- a/core/tests/Drupal/Tests/Core/Routing/RouteMatchTestBase.php
+++ b/core/tests/Drupal/Tests/Core/Routing/RouteMatchTestBase.php
@@ -9,9 +9,6 @@
 
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
-use Symfony\Component\HttpFoundation\ParameterBag;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Routing\Route;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Session/AnonymousUserSessionTest.php b/core/tests/Drupal/Tests/Core/Session/AnonymousUserSessionTest.php
index 043e17ecf0c1d9cae78c7ba88e6142ee9226c23b..c3cabec1eb587087056a7c59239dc0434bc4a3fe 100644
--- a/core/tests/Drupal/Tests/Core/Session/AnonymousUserSessionTest.php
+++ b/core/tests/Drupal/Tests/Core/Session/AnonymousUserSessionTest.php
@@ -9,11 +9,7 @@
 
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\Session\AnonymousUserSession;
-  use Drupal\user\RoleInterface;
-  use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\DependencyInjection\Definition;
-use Symfony\Component\DependencyInjection\Scope;
-use Symfony\Component\HttpFoundation\RequestStack;
+use Drupal\user\RoleInterface;
 
 /**
  * @coversDefaultClass \Drupal\Core\Session\AnonymousUserSession
diff --git a/core/tests/Drupal/Tests/Core/Session/PermissionsHashGeneratorTest.php b/core/tests/Drupal/Tests/Core/Session/PermissionsHashGeneratorTest.php
index 925c3109bddb8f1060d6d37cd666e1ac9c68b826..0fffbb9f9c253f61049ae17f4d6e404a8ec5f808 100644
--- a/core/tests/Drupal/Tests/Core/Session/PermissionsHashGeneratorTest.php
+++ b/core/tests/Drupal/Tests/Core/Session/PermissionsHashGeneratorTest.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Site\Settings;
 use Drupal\Tests\UnitTestCase;
 
-
 /**
  * @coversDefaultClass \Drupal\Core\Session\PermissionsHashGenerator
  * @group Session
diff --git a/core/tests/Drupal/Tests/Core/Session/SessionConfigurationTest.php b/core/tests/Drupal/Tests/Core/Session/SessionConfigurationTest.php
index 59325eb1ee6e85307c1d7aa03f99c3505682f178..27f61771cda2c6370bcb9ae3ea9399540ea7fbcc 100644
--- a/core/tests/Drupal/Tests/Core/Session/SessionConfigurationTest.php
+++ b/core/tests/Drupal/Tests/Core/Session/SessionConfigurationTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\Tests\Core\Session;
 
 use Drupal\Tests\UnitTestCase;
-use Drupal\Core\Session\SessionConfiguration;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/Theme/ThemeNegotiatorTest.php b/core/tests/Drupal/Tests/Core/Theme/ThemeNegotiatorTest.php
index 55a6f7f441ae834164cea5d072ef221df9216081..0234ded9895e1cf9dacc152bb87ff4379947d189 100644
--- a/core/tests/Drupal/Tests/Core/Theme/ThemeNegotiatorTest.php
+++ b/core/tests/Drupal/Tests/Core/Theme/ThemeNegotiatorTest.php
@@ -10,8 +10,6 @@
 use Drupal\Core\Routing\RouteMatch;
 use Drupal\Core\Theme\ThemeNegotiator;
 use Drupal\Tests\UnitTestCase;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\Routing\Route;
 
 /**
diff --git a/core/tests/Drupal/Tests/UnitTestCase.php b/core/tests/Drupal/Tests/UnitTestCase.php
index a956d19605cef107adf4883cb721b3e76bb1ed2d..f2c6f4c623dccadae9bfde1b73be5f8b95dffd2a 100644
--- a/core/tests/Drupal/Tests/UnitTestCase.php
+++ b/core/tests/Drupal/Tests/UnitTestCase.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\FileCache\FileCacheFactory;
 use Drupal\Component\Utility\Random;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
diff --git a/core/themes/bartik/bartik.theme b/core/themes/bartik/bartik.theme
index 03dc8b4436393f6690ec56b861f62e14ef19e857..3d3ca1297aaaab912cc3f6a31fa4cc1b9b0361d9 100644
--- a/core/themes/bartik/bartik.theme
+++ b/core/themes/bartik/bartik.theme
@@ -5,7 +5,6 @@
  * Functions to support theming in the Bartik theme.
  */
 
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Template\Attribute;
 
 /**
diff --git a/core/themes/engines/twig/twig.engine b/core/themes/engines/twig/twig.engine
index 44ee5ac6bfb609daf304991c6d4b0fdc5ac7a62e..30ec511f19acffdab19429a2d88ac30a6085f70e 100644
--- a/core/themes/engines/twig/twig.engine
+++ b/core/themes/engines/twig/twig.engine
@@ -6,7 +6,6 @@
  */
 
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\Extension\Extension;
 
diff --git a/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
index 29aaf620328cd3caf36b7af049c525b39ebf290b..9afa603b2b6f244db51f3fa226cfcfade21970ca 100644
--- a/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -5,7 +5,6 @@
  * Functions to support theming in the Seven theme.
  */
 
-use Drupal\Component\Utility\Xss;
 use Drupal\Core\Form\FormStateInterface;
 
 /**