diff --git a/core/modules/migrate/migrate.install b/core/modules/migrate/migrate.install
index 0ce3f01..7a3f630 100644
--- a/core/modules/migrate/migrate.install
+++ b/core/modules/migrate/migrate.install
@@ -6,10 +6,6 @@
  */
 
 use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\migrate\Exception\RequirementsException;
-use Drupal\migrate\Plugin\migrate\destination\EntityContentBase;
-use Drupal\migrate\Plugin\migrate\destination\EntityRevision;
-use Drupal\migrate\Plugin\migrate\id_map\Sql;
 
 /**
  * Remove load plugin references from existing migrations.
diff --git a/core/modules/migrate/tests/src/Unit/destination/EntityRevisionTest.php b/core/modules/migrate/tests/src/Unit/destination/EntityRevisionTest.php
index 8a6fe9a..5a63f06 100644
--- a/core/modules/migrate/tests/src/Unit/destination/EntityRevisionTest.php
+++ b/core/modules/migrate/tests/src/Unit/destination/EntityRevisionTest.php
@@ -230,6 +230,8 @@ public function save(ContentEntityInterface $entity, array $old_destination_id_v
    * workings of its implementation which would trickle into mock assertions. An
    * empty implementation avoids this.
    */
-  protected function updateEntity(EntityInterface $entity, Row $row) {}
+  protected function updateEntity(EntityInterface $entity, Row $row) {
+    return $entity;
+  }
 
 }