diff --git a/core/modules/block/tests/src/Unit/BlockRepositoryTest.php b/core/modules/block/tests/src/Unit/BlockRepositoryTest.php
index 6b9de28dce..229f74c8a6 100644
--- a/core/modules/block/tests/src/Unit/BlockRepositoryTest.php
+++ b/core/modules/block/tests/src/Unit/BlockRepositoryTest.php
@@ -1,17 +1,10 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Tests\block\Unit\BlockRepositoryTest.
- */
-
 namespace Drupal\Tests\block\Unit;
 
 use Drupal\block\BlockRepository;
 use Drupal\Core\Access\AccessResult;
-use Drupal\Core\Block\BlockPluginInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
-use Drupal\Core\Plugin\ContextAwarePluginInterface;
 use Drupal\Tests\UnitTestCase;
 
 /**
@@ -191,6 +184,3 @@ public function testGetVisibleBlocksPerRegionWithContext() {
   }
 
 }
-
-interface TestContextAwareBlockInterface extends BlockPluginInterface, ContextAwarePluginInterface {
-}