diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryInterface.php b/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryInterface.php
deleted file mode 100644
index 0b00a1765de..00000000000
--- a/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryInterface.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-/**
- * @file
- * Definition of Drupal\views\Plugin\query\QueryInterface.
- */
-
-namespace Drupal\views\Plugin\views\query;
-
-use Drupal\views\Plugin\views\PluginInterface;
-
-/**
- * @todo.
- */
-interface QueryInterface extends PluginInterface {
-
-}
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryPluginBase.php
index 60ed13fac7c..64447fc7558 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/query/QueryPluginBase.php
@@ -14,7 +14,7 @@ use Drupal\views\ViewExecutable;
 /**
  * @todo.
  */
-abstract class QueryPluginBase extends PluginBase implements QueryInterface {
+abstract class QueryPluginBase extends PluginBase {
 
   /**
    * A pager plugin that should be provided by the display.