diff --git a/core/modules/migrate/src/Plugin/MigrationPluginManager.php b/core/modules/migrate/src/Plugin/MigrationPluginManager.php
index 8dd2afb..744ee2b 100644
--- a/core/modules/migrate/src/Plugin/MigrationPluginManager.php
+++ b/core/modules/migrate/src/Plugin/MigrationPluginManager.php
@@ -8,7 +8,6 @@
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
 use Drupal\Core\Plugin\DefaultPluginManager;
-use Drupal\Core\Plugin\Discovery\ContainerDerivativeDiscoveryDecorator;
 use Drupal\Core\Plugin\Discovery\YamlDirectoryDiscovery;
 use Drupal\Core\Plugin\Factory\ContainerFactory;
 use Drupal\migrate\MigrateBuildDependencyInterface;
diff --git a/core/modules/migrate/tests/src/Kernel/Plugin/MigrationPluginListTest.php b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationPluginListTest.php
index 5861cf2..9e5a16c 100644
--- a/core/modules/migrate/tests/src/Kernel/Plugin/MigrationPluginListTest.php
+++ b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationPluginListTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Tests\migrate\Kernel\Plugin\MigrationPluginListTest.
- */
-
 namespace Drupal\Tests\migrate\Kernel\Plugin;
 
 use Drupal\KernelTests\KernelTestBase;