diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Controller/TermAutocompleteController.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Controller/TermAutocompleteController.php
index f6bbf21..844ccb0 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Controller/TermAutocompleteController.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Controller/TermAutocompleteController.php
@@ -144,10 +144,9 @@ public function autocomplete(Request $request, $entity_type, $field_name) {
    * @param \Drupal\taxonomy\VocabularyInterface $taxonomy_vocabulary
    *   The vocabulary to filter by.
    *
-   * @return \Symfony\Component\HttpFoundation\JsonResponse|\Symfony\Component\HttpFoundation\Response
-   *   When valid field name is specified, a JSON response containing the
-   *   autocomplete suggestions for taxonomy terms. Otherwise a normal response
-   *   containing an error message.
+   * @return \Symfony\Component\HttpFoundation\JsonResponse
+   *   A JSON response containing the autocomplete suggestions for taxonomy
+   *   terms.
    */
   public function autocompletePerVid(Request $request, VocabularyInterface $taxonomy_vocabulary) {
     // A comma-separated list of term names entered in the autocomplete form
diff --git a/core/modules/views/includes/ajax.inc b/core/modules/views/includes/ajax.inc
index c3b493e..788d1c1 100644
--- a/core/modules/views/includes/ajax.inc
+++ b/core/modules/views/includes/ajax.inc
@@ -5,16 +5,9 @@
  * Handles the server side AJAX interactions of Views.
  */
 
-use Symfony\Component\HttpFoundation\JsonResponse;
 use Drupal\views\Ajax\HighlightCommand;
 use Drupal\views\Ajax\SetFormCommand;
-use Drupal\Core\Ajax\ReplaceCommand;
-use Drupal\views\Ajax\ScrollTopCommand;
-use Drupal\views\Ajax\ViewAjaxResponse;
 use Drupal\Core\Ajax\AjaxResponse;
-use Drupal\Component\Utility\Tags;
-use Drupal\Component\Utility\Unicode;
-use Drupal\Component\Utility\String;
 
 /**
  * @defgroup views_ajax Views AJAX library