Issue #3264072 by andypost: Remove deprecated code from Drupal\Core\Archiver

   * @param \Drupal\Core\File\FileSystemInterface $file_system

   *   The file handler.

   */

  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, FileSystemInterface $file_system = NULL) {

  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, FileSystemInterface $file_system) {

    parent::__construct('Plugin/Archiver', $namespaces, $module_handler, 'Drupal\Core\Archiver\ArchiverInterface', 'Drupal\Core\Archiver\Annotation\Archiver');

    $this->alterInfo('archiver_info');

    $this->setCacheBackend($cache_backend, 'archiver_info_plugins');

    if (!isset($file_system)) {

      @trigger_error('Not defining the final $file_system argument to ' . __METHOD__ . ' is deprecated in drupal:8.8.3 and will throw an error in drupal:10.0.0.', E_USER_DEPRECATED);

      $file_system = \Drupal::service('file_system');

    }

    $this->fileSystem = $file_system;

  }