I am not certain if it is allowed by coding standards but it looks a bit weird and inconsistent with other files.
use Drupal\Component\Utility\Crypt;
use Drupal\Component\Render\PlainTextOutput;
use Drupal\Component\Utility\Unicode;
use Drupal\Core\Asset\AttachedAssetsInterface;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\Core\Render\Element;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Session\AnonymousUserSession;
use Drupal\Core\Site\Settings;
use Drupal\Core\Url;
use Drupal\user\Entity\Role;
use Drupal\user\Entity\User;
use Drupal\user\RoleInterface;
use Drupal\user\UserInterface;
/**
* @file
* Enables the user registration and login system.
*/
https://api.drupal.org/api/drupal/core%21modules%21user%21user.module/8
