Issue #3316855: Remove \Drupal\Tests\package_manager\Kernel\PackageManagerKernelTestBase::copyFixtureFolderToStageDirectoryOnApply()

package_manager/tests/src/Kernel/PackageManagerKernelTestBase.php

@@ -276,22 +276,6 @@ abstract class PackageManagerKernelTestBase extends KernelTestBase {
     static::copyFixtureFilesTo($active_fixture_dir, $active_dir);
   }
 
-  /**
-   * Copies a fixture directory into the stage directory on apply.
-   *
-   * @param string $fixture_dir
-   *   Path to fixture directory from which the files will be copied.
-   */
-  protected function copyFixtureFolderToStageDirectoryOnApply(string $fixture_dir) {
-    /** @var \Symfony\Component\EventDispatcher\EventDispatcherInterface $event_dispatcher */
-    $event_dispatcher = $this->container->get('event_dispatcher');
-
-    $listener = function (PreApplyEvent $event) use ($fixture_dir): void {
-      static::copyFixtureFilesTo($fixture_dir, $event->getStage()->getStageDirectory());
-    };
-    $event_dispatcher->addListener(PreApplyEvent::class, $listener, PHP_INT_MAX);
-  }
-
   /**
    * Sets the current (running) version of core, as known to the Update module.
    *