Issue #3254885 by gaurav.kapoor: Role history not removed after user deletion

 * Implements hook_ENTITY_TYPE_delete().

 */

function role_watchdog_user_delete(EntityInterface $account) {

  // TODO: different actions according to account cancellation.

  // Deleting all the role watchdog entities created because of a particular user.

  $query = \Drupal::entityQuery('role_watchdog')->condition('field_user_performed_on', $account->id());

  $ids = $query->execute();

  $storage_handler = \Drupal::entityTypeManager()->getStorage('role_watchdog');

  $entities = $storage_handler->loadMultiple($ids);

  $storage_handler->delete($entities);

}

/**