Issue #1602534 by dawehner: Remove a missing ctools_include() call.

lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php

@@ -944,8 +944,6 @@ function build_group_form(&$form, &$form_state) {
       $row['operator']['#title'] = '';
       $this->value_form($row, $form_state);
 
-      // @todo: Convert this to #states.
-      ctools_include('dependent');
       // Fix the dependencies to update value forms when operators
       // changes. This is needed because forms are inside a new form and
       // their ids changes. Dependencies are used when operator changes