diff --git a/src/Plugin/DataType/PluginInstance.php b/src/Plugin/DataType/PluginInstance.php
index 117c5bb..81cd23d 100644
--- a/src/Plugin/DataType/PluginInstance.php
+++ b/src/Plugin/DataType/PluginInstance.php
@@ -9,9 +9,7 @@ namespace Drupal\plugin\Plugin\DataType;
 
 use Drupal\Component\Plugin\PluginInspectionInterface;
 use Drupal\Core\DependencyInjection\DependencySerializationTrait;
-use Drupal\Core\TypedData\DataDefinitionInterface;
 use Drupal\Core\TypedData\TypedData;
-use Drupal\plugin\Plugin\Field\FieldType\PluginCollectionItemInterface;
 
 /**
  * Provides a plugin instance data type.
diff --git a/src/PluginDefinition/ArchiverPluginDefinitionDecorator.php b/src/PluginDefinition/ArchiverPluginDefinitionDecorator.php
index 119633e..a0dc49a 100644
--- a/src/PluginDefinition/ArchiverPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/ArchiverPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides an archiver plugin definition decorator.
  *
diff --git a/src/PluginDefinition/DisplayVariantPluginDefinitionDecorator.php b/src/PluginDefinition/DisplayVariantPluginDefinitionDecorator.php
index d6e337c..7cb85fb 100644
--- a/src/PluginDefinition/DisplayVariantPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/DisplayVariantPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides a display variant plugin definition decorator.
  *
diff --git a/src/PluginDefinition/FilterPluginDefinitionDecorator.php b/src/PluginDefinition/FilterPluginDefinitionDecorator.php
index 176589d..6eba558 100644
--- a/src/PluginDefinition/FilterPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/FilterPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides a filter plugin definition decorator.
  *
diff --git a/src/PluginDefinition/LinkPluginDefinitionDecorator.php b/src/PluginDefinition/LinkPluginDefinitionDecorator.php
index 60eab8c..c08f23c 100644
--- a/src/PluginDefinition/LinkPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/LinkPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides a link (menu link, local action/task) plugin definition decorator.
  *
diff --git a/src/PluginDefinition/SearchPluginDefinitionDecorator.php b/src/PluginDefinition/SearchPluginDefinitionDecorator.php
index 030b2c2..ffad230 100644
--- a/src/PluginDefinition/SearchPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/SearchPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides a search plugin definition decorator.
  *
diff --git a/src/PluginDefinition/TourTipPluginDefinitionDecorator.php b/src/PluginDefinition/TourTipPluginDefinitionDecorator.php
index 03ed80a..f6007ef 100644
--- a/src/PluginDefinition/TourTipPluginDefinitionDecorator.php
+++ b/src/PluginDefinition/TourTipPluginDefinitionDecorator.php
@@ -7,9 +7,6 @@
 
 namespace Drupal\plugin\PluginDefinition;
 
-use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
-use Drupal\Component\Utility\NestedArray;
-
 /**
  * Provides a tour tip plugin definition decorator.
  *
diff --git a/src/PluginManager/PluginManagerDecorator.php b/src/PluginManager/PluginManagerDecorator.php
index a45192f..1645dcc 100644
--- a/src/PluginManager/PluginManagerDecorator.php
+++ b/src/PluginManager/PluginManagerDecorator.php
@@ -9,7 +9,6 @@ namespace Drupal\plugin\PluginManager;
 use Drupal\Component\Plugin\Discovery\DiscoveryInterface;
 use Drupal\Component\Plugin\Exception\PluginNotFoundException;
 use Drupal\Component\Plugin\PluginManagerInterface;
-use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\plugin\PluginDiscovery\PluginDiscoveryDecorator;
 
 /**
diff --git a/src/PluginType/PluginType.php b/src/PluginType/PluginType.php
index f290e54..777f818 100644
--- a/src/PluginType/PluginType.php
+++ b/src/PluginType/PluginType.php
@@ -13,7 +13,6 @@ use Drupal\Core\DependencyInjection\ClassResolverInterface;
 use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Drupal\Core\StringTranslation\TranslationInterface;
-use Drupal\plugin\PluginType\DefaultPluginTypeOperationsProvider;
 use Drupal\plugin\PluginDefinition\PluginDefinitionInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
diff --git a/tests/fixtures/module_installation/database_dump.php b/tests/fixtures/module_installation/database_dump.php
index 48c4b33..9f8f3fe 100644
--- a/tests/fixtures/module_installation/database_dump.php
+++ b/tests/fixtures/module_installation/database_dump.php
@@ -6,7 +6,6 @@
  */
 
 use Drupal\Core\Database\Database;
-use Symfony\Component\Yaml\Yaml;
 
 $connection = Database::getConnection();
 
diff --git a/tests/src/Unit/PluginDefinition/BlockPluginDefinitionDecoratorTest.php b/tests/src/Unit/PluginDefinition/BlockPluginDefinitionDecoratorTest.php
index c0b18e6..561bcec 100644
--- a/tests/src/Unit/PluginDefinition/BlockPluginDefinitionDecoratorTest.php
+++ b/tests/src/Unit/PluginDefinition/BlockPluginDefinitionDecoratorTest.php
@@ -7,11 +7,7 @@
 
 namespace Drupal\Tests\plugin\Unit\PluginDefinition;
 
-use Drupal\Component\Plugin\Derivative\DeriverInterface;
-use Drupal\Core\Plugin\Context\ContextDefinitionInterface;
-use Drupal\plugin\PluginDefinition\ArrayPluginDefinitionDecorator;
 use Drupal\plugin\PluginDefinition\BlockPluginDefinitionDecorator;
-use Drupal\plugin\PluginDefinition\PluginDefinitionInterface;
 use Drupal\Tests\UnitTestCase;
 
 /**
diff --git a/tests/src/Unit/PluginManager/PluginManagerDecoratorTest.php b/tests/src/Unit/PluginManager/PluginManagerDecoratorTest.php
index 056a9a6..a87c88e 100644
--- a/tests/src/Unit/PluginManager/PluginManagerDecoratorTest.php
+++ b/tests/src/Unit/PluginManager/PluginManagerDecoratorTest.php
@@ -10,7 +10,6 @@ namespace Drupal\Tests\plugin\Unit\PluginDiscovery;
 use Drupal\Component\Plugin\Discovery\DiscoveryInterface;
 use Drupal\Component\Plugin\PluginInspectionInterface;
 use Drupal\Component\Plugin\PluginManagerInterface;
-use Drupal\plugin\PluginDiscovery\PluginDiscoveryDecorator;
 use Drupal\plugin\PluginManager\PluginManagerDecorator;
 use Drupal\Tests\UnitTestCase;
 
diff --git a/tests/src/Unit/PluginType/PluginTypeTest.php b/tests/src/Unit/PluginType/PluginTypeTest.php
index 2fe775a..675373f 100644
--- a/tests/src/Unit/PluginType/PluginTypeTest.php
+++ b/tests/src/Unit/PluginType/PluginTypeTest.php
@@ -11,7 +11,6 @@ use Drupal\Component\Plugin\PluginManagerInterface;
 use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\DependencyInjection\ClassResolverInterface;
 use Drupal\plugin\PluginDefinition\ArrayPluginDefinitionDecorator;
-use Drupal\plugin\PluginDefinition\PluginDefinitionDecoratorInterface;
 use Drupal\plugin\PluginDefinition\PluginDefinitionInterface;
 use Drupal\plugin\PluginType\PluginType;
 use Drupal\Tests\UnitTestCase;