diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index c2aeb55e0c52a6e67f3e80c9dc553a5c20488b3f..45c9490713bb313fcea0639eb5f66643a5f49cfb 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -14,7 +14,6 @@
 use Drupal\Core\Logger\RfcLogLevel;
 use Drupal\Core\Test\TestDatabase;
 use Drupal\Core\Session\AccountInterface;
-use Drupal\Core\Site\Settings;
 use Drupal\Core\Utility\Error;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 
@@ -797,12 +796,6 @@ function drupal_get_profile() {
     else {
       $profile = BootstrapConfigStorageFactory::getDatabaseStorage()->read('core.extension')['profile'];
     }
-
-    // A BC layer just in in case this only exists in Settings. Introduced in
-    // Drupal 8.3.x and will be removed before Drupal 9.0.0.
-    if (empty($profile)) {
-      $profile = Settings::get('install_profile');
-    }
   }
 
   return $profile;
diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index f2a5a6a64d73953d3d4566b2391b94705c657ea6..39c809fa081bac6474bf3e581e0307b70ea147fe 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -17,7 +17,6 @@
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Installer\Exception\AlreadyInstalledException;
 use Drupal\Core\Installer\Exception\InstallerException;
-use Drupal\Core\Installer\Exception\InstallProfileMismatchException;
 use Drupal\Core\Installer\Exception\NoProfilesException;
 use Drupal\Core\Installer\InstallerKernel;
 use Drupal\Core\Language\Language;
@@ -2284,16 +2283,16 @@ function install_display_requirements($install_state, $requirements) {
  *
  * @see _install_select_profile()
  *
- * @throws \Drupal\Core\Installer\Exception\InstallProfileMismatchException
- *
  * @deprecated in Drupal 8.3.0 and will be removed before Drupal 9.0.0. The
  *    install profile is written to core.extension.
  */
 function install_write_profile($install_state) {
-  // Only need to write to settings.php if it is possible. The primary storage
-  // for the install profile is the core.extension configuration.
+  // Only write the install profile to settings.php if already exists. The value
+  // from settings.php is never used but drupal_rewrite_settings() does not
+  // support removing a setting. If the value in configuration and settings.php
+  // don't match there will be a warning on the status report.
   $settings_path = \Drupal::service('site.path') . '/settings.php';
-  if (is_writable($settings_path)) {
+  if (is_writable($settings_path) && array_key_exists('install_profile', Settings::getAll())) {
     // Remember the profile which was used.
     $settings['settings']['install_profile'] = (object) [
       'value' => $install_state['parameters']['profile'],
@@ -2301,9 +2300,6 @@ function install_write_profile($install_state) {
     ];
     drupal_rewrite_settings($settings);
   }
-  elseif (($settings_profile = Settings::get('install_profile')) && $settings_profile !== $install_state['parameters']['profile']) {
-    throw new InstallProfileMismatchException($install_state['parameters']['profile'], $settings_profile, $settings_path, \Drupal::translation());
-  }
 }
 
 /**
diff --git a/core/lib/Drupal/Core/DrupalKernel.php b/core/lib/Drupal/Core/DrupalKernel.php
index 8de7a460c032c90be063abe70a3c94a89a397879..73022a5f541e358af5124260dbeeea239b244b35 100644
--- a/core/lib/Drupal/Core/DrupalKernel.php
+++ b/core/lib/Drupal/Core/DrupalKernel.php
@@ -1604,13 +1604,14 @@ protected function addServiceFiles(array $service_yamls) {
    */
   protected function getInstallProfile() {
     $config = $this->getConfigStorage()->read('core.extension');
-    if (!empty($config['profile'])) {
+    if (isset($config['profile'])) {
       $install_profile = $config['profile'];
     }
     // @todo https://www.drupal.org/node/2831065 remove the BC layer.
     else {
       // If system_update_8300() has not yet run fallback to using settings.
-      $install_profile = Settings::get('install_profile');
+      $settings = Settings::getAll();
+      $install_profile = isset($settings['install_profile']) ? $settings['install_profile'] : NULL;
     }
 
     // Normalize an empty string to a NULL value.
diff --git a/core/lib/Drupal/Core/Installer/Exception/InstallProfileMismatchException.php b/core/lib/Drupal/Core/Installer/Exception/InstallProfileMismatchException.php
index d67978986abbaf552e8effe3aeafaf8561ccb27e..7717b094b32d4a940eb74ca5bc559840c20c60bf 100644
--- a/core/lib/Drupal/Core/Installer/Exception/InstallProfileMismatchException.php
+++ b/core/lib/Drupal/Core/Installer/Exception/InstallProfileMismatchException.php
@@ -4,6 +4,8 @@
 
 use Drupal\Core\StringTranslation\TranslationInterface;
 
+@trigger_error(__NAMESPACE__ . '/InstallProfileMismatchException is deprecated in Drupal 8.6.0 and will be removed before Drupal 9. See https://www.drupal.org/node/2538996', E_USER_DEPRECATED);
+
 /**
  * Exception thrown if settings.php cannot be written and the chosen profile does not match.
  */
diff --git a/core/lib/Drupal/Core/Installer/Form/SiteSettingsForm.php b/core/lib/Drupal/Core/Installer/Form/SiteSettingsForm.php
index 651e9f58e807ff666ee7bfacbc3961284cb51576..a0b576edcc66c8883d50db37316b36ec78265a8b 100644
--- a/core/lib/Drupal/Core/Installer/Form/SiteSettingsForm.php
+++ b/core/lib/Drupal/Core/Installer/Form/SiteSettingsForm.php
@@ -225,11 +225,6 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
       'value'    => Crypt::randomBytesBase64(55),
       'required' => TRUE,
     ];
-    // Remember the profile which was used.
-    $settings['settings']['install_profile'] = (object) [
-      'value' => $install_state['parameters']['profile'],
-      'required' => TRUE,
-    ];
 
     drupal_rewrite_settings($settings);
 
diff --git a/core/lib/Drupal/Core/Site/Settings.php b/core/lib/Drupal/Core/Site/Settings.php
index bdd2609a7c020b8fc387e6bc15c01aadaeedbbba..c6fbed659f98767b6979dade6a30a529fc7fb2a0 100644
--- a/core/lib/Drupal/Core/Site/Settings.php
+++ b/core/lib/Drupal/Core/Site/Settings.php
@@ -84,6 +84,9 @@ public function __sleep() {
    *   The value of the setting, the provided default if not set.
    */
   public static function get($name, $default = NULL) {
+    if ($name === 'install_profile' && isset(self::$instance->storage[$name])) {
+      @trigger_error('To access the install profile in Drupal 8 use \Drupal::installProfile() or inject the install_profile container parameter into your service. See https://www.drupal.org/node/2538996', E_USER_DEPRECATED);
+    }
     return isset(self::$instance->storage[$name]) ? self::$instance->storage[$name] : $default;
   }
 
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index 0fe129b0b6d000f1f156734d24508a1b2b8e59f1..6eb8c120056937127bb69ca174beffe567414dad 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -1015,6 +1015,21 @@ function system_requirements($phase) {
       ];
     }
   }
+
+  if ($phase === 'runtime') {
+    $settings = Settings::getAll();
+    if (array_key_exists('install_profile', $settings)) {
+      // The following message is only informational because not all site owners
+      // have access to edit their settings.php as it may be controlled by their
+      // hosting provider.
+      $requirements['install_profile_in_settings'] = [
+        'title' => t('Install profile in settings'),
+        'value' => t("Drupal 8 no longer uses the \$settings['install_profile'] value in settings.php and it can be removed."),
+        'severity' => REQUIREMENT_INFO,
+      ];
+    }
+  }
+
   return $requirements;
 }
 
diff --git a/core/modules/system/tests/src/Functional/Update/InstallProfileSystemInstall8300Test.php b/core/modules/system/tests/src/Functional/Update/InstallProfileSystemInstall8300Test.php
index 623f88047e108925e3e180996cb6d99faaacbf61..0a1d03ff36852ee31e92c81d3b983232bf7bb569 100644
--- a/core/modules/system/tests/src/Functional/Update/InstallProfileSystemInstall8300Test.php
+++ b/core/modules/system/tests/src/Functional/Update/InstallProfileSystemInstall8300Test.php
@@ -9,6 +9,7 @@
  * Tests system_update_8300().
  *
  * @group Update
+ * @group legacy
  */
 class InstallProfileSystemInstall8300Test extends UpdatePathTestBase {
 
@@ -23,6 +24,8 @@ protected function setDatabaseDumpFiles() {
 
   /**
    * Ensures that the system_update_8300() runs as expected.
+   *
+   * @expectedDeprecation To access the install profile in Drupal 8 use \Drupal::installProfile() or inject the install_profile container parameter into your service. See https://www.drupal.org/node/2538996
    */
   public function testUpdate() {
     // Ensure the BC layers work and settings.php and configuration is in the
diff --git a/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php b/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
index f18c7c3cd6861ae0d048f760a7975ced38661e48..708d517a321200d83c28e1d1bd5790918fc820c7 100644
--- a/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
+++ b/core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php
@@ -179,7 +179,7 @@ public function testDependencyResolution() {
   public function testUninstallProfileDependencyBC() {
     $profile = 'testing_install_profile_dependencies_bc';
     $dependency = 'dblog';
-    $this->setSetting('install_profile', $profile);
+    $this->setInstallProfile($profile);
     // Prime the drupal_get_filename() static cache with the location of the
     // testing profile as it is not the currently active profile and we don't
     // yet have any cached way to retrieve its location.
@@ -213,7 +213,7 @@ public function testUninstallProfileDependency() {
     $profile = 'testing_install_profile_dependencies';
     $dependency = 'dblog';
     $non_dependency = 'ban';
-    $this->setSetting('install_profile', $profile);
+    $this->setInstallProfile($profile);
     // Prime the drupal_get_filename() static cache with the location of the
     // testing_install_profile_dependencies profile as it is not the currently
     // active profile and we don't yet have any cached way to retrieve its
@@ -252,7 +252,7 @@ public function testProfileAllDependencies() {
     $profile = 'testing_install_profile_all_dependencies';
     $dependencies = ['dblog', 'ban'];
 
-    $this->setSetting('install_profile', $profile);
+    $this->setInstallProfile($profile);
     // Prime the drupal_get_filename() static cache with the location of the
     // testing_install_profile_dependencies profile as it is not the currently
     // active profile and we don't yet have any cached way to retrieve its
diff --git a/core/profiles/demo_umami/modules/demo_umami_content/tests/src/Functional/DefaultContentFilesAccessTest.php b/core/profiles/demo_umami/modules/demo_umami_content/tests/src/Functional/DefaultContentFilesAccessTest.php
index b12149190db42558f01d214e308e66104113da24..3e93494404d37659cb2a326be1ff9ca0b77b1929 100644
--- a/core/profiles/demo_umami/modules/demo_umami_content/tests/src/Functional/DefaultContentFilesAccessTest.php
+++ b/core/profiles/demo_umami/modules/demo_umami_content/tests/src/Functional/DefaultContentFilesAccessTest.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Tests\demo_umami_content\Functional;
 
-use Drupal\Core\Site\Settings;
 use Drupal\Tests\BrowserTestBase;
 
 /**
@@ -18,7 +17,7 @@ class DefaultContentFilesAccessTest extends BrowserTestBase {
   public function testAccessDeniedToFiles() {
     // The demo_umami profile should not be used because we want to ensure that
     // if you install another profile these files are not available.
-    $this->assertNotSame('demo_umami', Settings::get('install_profile'));
+    $this->assertNotSame('demo_umami', \Drupal::installProfile());
 
     $files_to_test = [
       'images/chocolate-brownie-umami.jpg',
diff --git a/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php b/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php
index f5bcf43df8e7b960ed2af6b0619c7333c5eb976e..acaf2c2b3258c4d4b4f708e0c36ef11752168066 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php
@@ -119,7 +119,7 @@ public function testInstalled() {
 
     // Confirm that Drupal recognizes this distribution as the current profile.
     $this->assertEqual(\Drupal::installProfile(), 'mydistro');
-    $this->assertNull(Settings::get('install_profile'), 'The install profile has not been written to settings.php.');
+    $this->assertArrayNotHasKey('install_profile', Settings::getAll(), 'The install profile has not been written to settings.php.');
     $this->assertEqual($this->config('core.extension')->get('profile'), 'mydistro', 'The install profile has been written to core.extension configuration.');
 
     $this->rebuildContainer();
diff --git a/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTest.php b/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTest.php
index 1e4392981f92d5dc7a1a79fae238d9e692a6eff0..630ec1558d8828c6e9e4ad2c87b24f1335924895 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTest.php
@@ -3,7 +3,6 @@
 namespace Drupal\FunctionalTests\Installer;
 
 use Drupal\Core\Serialization\Yaml;
-use Drupal\Core\Site\Settings;
 
 /**
  * Tests distribution profile support.
@@ -74,7 +73,6 @@ public function testInstalled() {
 
     // Confirm that Drupal recognizes this distribution as the current profile.
     $this->assertEqual(\Drupal::installProfile(), 'mydistro');
-    $this->assertEqual(Settings::get('install_profile'), 'mydistro', 'The install profile has been written to settings.php.');
     $this->assertEqual($this->config('core.extension')->get('profile'), 'mydistro', 'The install profile has been written to core.extension configuration.');
   }
 
diff --git a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileTest.php b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileTest.php
index 7d82300d5d3958352020599c5534dcc33a2c8762..18dd66daea528d2289542e51977d6c40848b8d66 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileTest.php
@@ -8,9 +8,10 @@
 use Symfony\Component\HttpFoundation\Request;
 
 /**
- * Tests the installer with an existing settings file but no install profile.
+ * Tests install with existing settings.php and a mismatching install profile.
  *
  * @group Installer
+ * @group legacy
  */
 class InstallerExistingSettingsMismatchProfileTest extends InstallerTestBase {
 
@@ -88,6 +89,8 @@ protected function setUpSettings() {
 
   /**
    * Verifies that installation succeeded.
+   *
+   * @expectedDeprecation To access the install profile in Drupal 8 use \Drupal::installProfile() or inject the install_profile container parameter into your service. See https://www.drupal.org/node/2538996
    */
   public function testInstaller() {
     $this->assertUrl('user/1');
diff --git a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileBrokenTest.php b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsReadOnlyMismatchProfileTest.php
similarity index 76%
rename from core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileBrokenTest.php
rename to core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsReadOnlyMismatchProfileTest.php
index 21f628cbd54ec982b28e811bd50588449676e28c..2b0b35e69f6cfc2ca7cc9c2fc1cf217a40fb53e7 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileBrokenTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsReadOnlyMismatchProfileTest.php
@@ -4,14 +4,16 @@
 
 use Drupal\Core\DrupalKernel;
 use Drupal\Core\Database\Database;
+use Drupal\Core\Site\Settings;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Tests installer breaks with a profile mismatch and a read-only settings.php.
  *
  * @group Installer
+ * @group legacy
  */
-class InstallerExistingSettingsMismatchProfileBrokenTest extends InstallerTestBase {
+class InstallerExistingSettingsReadOnlyMismatchProfileTest extends InstallerTestBase {
 
   /**
    * {@inheritdoc}
@@ -91,16 +93,18 @@ protected function setUpSettings() {
     // already.
   }
 
-  protected function setUpSite() {
-    // This step should not appear, since settings.php could not be written.
-  }
-
   /**
-   * Verifies that installation did not succeed.
+   * Verifies that installation succeeded.
+   *
+   * @expectedDeprecation To access the install profile in Drupal 8 use \Drupal::installProfile() or inject the install_profile container parameter into your service. See https://www.drupal.org/node/2538996
    */
-  public function testBrokenInstaller() {
-    $this->assertTitle('Install profile mismatch | Drupal');
-    $this->assertText("The selected profile testing does not match the install_profile setting, which is minimal. Cannot write updated setting to {$this->siteDirectory}/settings.php.");
+  public function testInstalled() {
+    $this->initBrowserOutputFile();
+    $this->htmlOutput(NULL);
+    $this->assertEquals('testing', \Drupal::installProfile());
+    $this->assertEquals('minimal', Settings::get('install_profile'));
+    $this->drupalGet('admin/reports/status');
+    $this->assertSession()->pageTextContains("Drupal 8 no longer uses the \$settings['install_profile'] value in settings.php and it can be removed.");
   }
 
 }
diff --git a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsTest.php b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsTest.php
index a6059e150a1bc9aff5e76670ddb2397717fbf8b5..3b85dcaa3a6ccc733caec095c3848fc88e2117b3 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsTest.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\FunctionalTests\Installer;
 
-use Drupal\Core\Site\Settings;
 use Drupal\Core\Database\Database;
 use Drupal\Core\DrupalKernel;
 use Symfony\Component\HttpFoundation\Request;
@@ -29,13 +28,6 @@ protected function prepareEnvironment() {
       'required' => TRUE,
     ];
 
-    // During interactive install we'll change this to a different profile and
-    // this test will ensure that the new value is written to settings.php.
-    $this->settings['settings']['install_profile'] = (object) [
-      'value' => 'minimal',
-      'required' => TRUE,
-    ];
-
     // Pre-configure database credentials.
     $connection_info = Database::getConnectionInfo();
     unset($connection_info['default']['pdo']);
@@ -73,8 +65,7 @@ protected function setUpSettings() {
   public function testInstaller() {
     $this->assertUrl('user/1');
     $this->assertResponse(200);
-    $this->assertEqual('testing', \Drupal::installProfile(), 'Profile was changed from minimal to testing during interactive install.');
-    $this->assertEqual('testing', Settings::get('install_profile'), 'Profile was correctly changed to testing in Settings.php');
+    $this->assertEqual('testing', \Drupal::installProfile());
   }
 
 }
diff --git a/core/tests/Drupal/FunctionalTests/Installer/MultipleDistributionsProfileTest.php b/core/tests/Drupal/FunctionalTests/Installer/MultipleDistributionsProfileTest.php
index 1c01e72aeb6f1182ec59c9a9ace38790de476da1..fe3b3d9a9092275e6865558e1de8fe634b6654b4 100644
--- a/core/tests/Drupal/FunctionalTests/Installer/MultipleDistributionsProfileTest.php
+++ b/core/tests/Drupal/FunctionalTests/Installer/MultipleDistributionsProfileTest.php
@@ -3,7 +3,6 @@
 namespace Drupal\FunctionalTests\Installer;
 
 use Drupal\Component\Serialization\Yaml;
-use Drupal\Core\Site\Settings;
 
 /**
  * Tests multiple distribution profile support.
@@ -78,7 +77,6 @@ public function testInstalled() {
 
     // Confirm that Drupal recognizes this distribution as the current profile.
     $this->assertEqual(\Drupal::installProfile(), 'distribution_one');
-    $this->assertEqual(Settings::get('install_profile'), 'distribution_one', 'The install profile has been written to settings.php.');
     $this->assertEqual($this->config('core.extension')->get('profile'), 'distribution_one', 'The install profile has been written to core.extension configuration.');
 
     $this->rebuildContainer();
diff --git a/core/tests/Drupal/KernelTests/Core/Extension/ModuleExtensionListTest.php b/core/tests/Drupal/KernelTests/Core/Extension/ModuleExtensionListTest.php
index 3ffef4a7140ede7a99f5ba794127eba932ec9d4a..dd5d13e0d445696ee24e20320fd97f108f64713d 100644
--- a/core/tests/Drupal/KernelTests/Core/Extension/ModuleExtensionListTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Extension/ModuleExtensionListTest.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\KernelTests\Core\Extension;
 
-use Drupal\Core\Site\Settings;
 use Drupal\KernelTests\KernelTestBase;
 
 /**
@@ -15,12 +14,9 @@ class ModuleExtensionListTest extends KernelTestBase {
    * @covers ::getList
    */
   public function testGetlist() {
-    $settings = Settings::getAll();
-    $settings['install_profile'] = 'testing';
-    new Settings($settings);
-
     \Drupal::configFactory()->getEditable('core.extension')
       ->set('module.testing', 1000)
+      ->set('profile', 'testing')
       ->save();
 
     // The installation profile is provided by a container parameter.
diff --git a/core/tests/Drupal/KernelTests/KernelTestBase.php b/core/tests/Drupal/KernelTests/KernelTestBase.php
index 71cb93f08b40bd00ea40eb153ad2d538ecd4330f..021e38d12b812cbd6e84f2f9ce7e483419588abe 100644
--- a/core/tests/Drupal/KernelTests/KernelTestBase.php
+++ b/core/tests/Drupal/KernelTests/KernelTestBase.php
@@ -934,11 +934,32 @@ protected function render(array &$elements) {
    *   \Drupal\Core\Site\Settings::get() to perform custom merges.
    */
   protected function setSetting($name, $value) {
+    if ($name === 'install_profile') {
+      @trigger_error('Use \Drupal\KernelTests\KernelTestBase::setInstallProfile() to set the install profile in kernel tests. See https://www.drupal.org/node/2538996', E_USER_DEPRECATED);
+      $this->setInstallProfile($value);
+    }
     $settings = Settings::getInstance() ? Settings::getAll() : [];
     $settings[$name] = $value;
     new Settings($settings);
   }
 
+  /**
+   * Sets the install profile and rebuilds the container to update it.
+   *
+   * @param string $profile
+   *   The install profile to set.
+   */
+  protected function setInstallProfile($profile) {
+    $this->container->get('config.factory')
+      ->getEditable('core.extension')
+      ->set('profile', $profile)
+      ->save();
+
+    // The installation profile is provided by a container parameter. Saving
+    // the configuration doesn't automatically trigger invalidation
+    $this->container->get('kernel')->rebuildContainer();
+  }
+
   /**
    * Stops test execution.
    */
diff --git a/sites/default/default.settings.php b/sites/default/default.settings.php
index 1e002a13b0e9db04dada356bda0d6479a791ad67..5bcecc267fabae54be86f51e9a3ea6751093e11c 100644
--- a/sites/default/default.settings.php
+++ b/sites/default/default.settings.php
@@ -263,23 +263,6 @@
  * @see \Drupal\Core\Site\Settings::get()
  */
 
-/**
- * The active installation profile.
- *
- * Changing this after installation is not recommended as it changes which
- * directories are scanned during extension discovery. If this is set prior to
- * installation this value will be rewritten according to the profile selected
- * by the user.
- *
- * @see install_select_profile()
- *
- * @deprecated in Drupal 8.3.0 and will be removed before Drupal 9.0.0. The
- *   install profile is written to the core.extension configuration. If a
- *   service requires the install profile use the 'install_profile' container
- *   parameter. Functional code can use \Drupal::installProfile().
- */
-# $settings['install_profile'] = '';
-
 /**
  * Salt for one-time login links, cancel links, form tokens, etc.
  *