Issue #3318332 by jonathan1055: Add hook_uninstall

    ->save();

}

/**

 * Implements hook_uninstall().

 */

function scheduler_uninstall() {

  // This should not be necessary but incase the entity db tables or config have

  // got out-of-step with the Scheduler plugins make sure all is up to date so

  // that uninstalling will run OK.

  $scheduler_manager = \Drupal::service('scheduler.manager');

  $scheduler_manager->entityUpdate();

  $scheduler_manager->entityRevert();

}

/**

 * Reset date and time formats to default.

 */