Issue #3087514 by plach, kim.pepper: Remove unused RequestStack property on pager/SqlBase

core/modules/views/src/Plugin/views/pager/SqlBase.php

@@ -22,13 +22,6 @@ abstract class SqlBase extends PagerPluginBase implements CacheableDependencyInt
    */
   protected $pagerManager;
 
-  /**
-   * The request stack.
-   *
-   * @var \Symfony\Component\HttpFoundation\RequestStack
-   */
-  protected $requestStack;
-
   /**
    * The pager parameters.
    *