diff --git a/core/lib/Drupal/Core/Entity/EntityType.php b/core/lib/Drupal/Core/Entity/EntityType.php
index c6f320fd6e60c6e03839e9a770a68403890cbcf5..e28fdb0da439f8e54515e15ac5f849f8b3e4d33a 100644
--- a/core/lib/Drupal/Core/Entity/EntityType.php
+++ b/core/lib/Drupal/Core/Entity/EntityType.php
@@ -3,7 +3,6 @@
 namespace Drupal\Core\Entity;
 
 use Drupal\Component\Plugin\Definition\PluginDefinition;
-use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\Core\Entity\Exception\EntityTypeIdLengthException;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
@@ -15,7 +14,6 @@
  */
 class EntityType extends PluginDefinition implements EntityTypeInterface {
 
-  use DependencySerializationTrait;
   use StringTranslationTrait;
 
   /**
diff --git a/core/tests/Drupal/Tests/Core/Entity/EntityTypeTest.php b/core/tests/Drupal/Tests/Core/Entity/EntityTypeTest.php
index ab02902db457411ec68e3df08705230ab53d457d..b28a72c617f7bf97e519955744e4d398fe31549d 100644
--- a/core/tests/Drupal/Tests/Core/Entity/EntityTypeTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/EntityTypeTest.php
@@ -5,7 +5,6 @@
 use Drupal\Core\Entity\EntityType;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
-use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Tests\UnitTestCase;
 
 /**
@@ -477,22 +476,4 @@ protected function assertNoPublicProperties(EntityTypeInterface $entity_type) {
     $this->assertEmpty($reflection->getProperties(\ReflectionProperty::IS_PUBLIC));
   }
 
-  /**
-   * Test the EntityType object it serializable.
-   */
-  public function testIsSerializable() {
-    $entity_type = $this->setUpEntityType([]);
-
-    $translation = $this->prophesize(TranslationInterface::class);
-    $translation->willImplement(\Serializable::class);
-    $translation->serialize()->willThrow(\Exception::class);
-    $translation_service = $translation->reveal();
-    $translation_service->_serviceId = 'string_translation';
-
-    $entity_type->setStringTranslation($translation_service);
-    $entity_type = unserialize(serialize($entity_type));
-
-    $this->assertEquals('example_entity_type', $entity_type->id());
-  }
-
 }