Issue #3423497 - Clear module functions

Related to #3423497

src/Controller/MpacAutocompleteController.php

 <?php
 
-namespace Drupal\mpac;
+namespace Drupal\mpac\Controller;
 
-use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Controller\ControllerBase;
+use Drupal\mpac\MpacAutocomplete;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
@@ -10,7 +11,7 @@ use Symfony\Component\HttpFoundation\Request;
 /**
  * Controller routines for mpax autocomplete routes.
  */
-class MpacAutocompleteController implements ContainerInjectionInterface {
+class MpacAutocompleteController extends ControllerBase {
 
   /**
    * The mpac autocomplete helper class to find matching items.
@@ -30,7 +31,7 @@ class MpacAutocompleteController implements ContainerInjectionInterface {
   }
 
   /**
-   * Implements \Drupal\Core\ControllerInterface::create().
+   * {@inheritdoc}
    */
   public static function create(ContainerInterface $container) {
     return new static(