diff --git a/core/modules/system/lib/Drupal/system/Tests/Cache/GenericCacheBackendUnitTestBase.php b/core/modules/system/lib/Drupal/system/Tests/Cache/GenericCacheBackendUnitTestBase.php
index e42410d50883457c1126c38d2414010e55fcf05f..e4e884dbeb13be7f5d89a0a063e5c96d5082fe3c 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Cache/GenericCacheBackendUnitTestBase.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Cache/GenericCacheBackendUnitTestBase.php
@@ -178,7 +178,6 @@ public function testDelete() {
     $backend->delete('test1');
     $this->assertIdentical(FALSE, $backend->get('test1'), "Backend does not contain data for cache id test1 after deletion.");
 
-    $cached = $backend->get('test2');
     $this->assert(is_object($backend->get('test2')), "Backend still has an object for cache id test2.");
 
     $backend->delete('test2');