Issue #2209029 by pwolanin: Follow-up: clean up use statements in book module code.

core/modules/book/book.admin.inc

@@ -5,10 +5,6 @@
  * Administration page callbacks for the Book module.
  */
 
-use Drupal\Component\Utility\Crypt;
-use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Language\Language;
-
 /**
  * Returns HTML for a book administration form.
  *

core/modules/book/lib/Drupal/book/Access/BookNodeIsRemovableAccessCheck.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\book\Access;
 
-use Drupal\book\BookManager;
 use Drupal\book\BookManagerInterface;
 use Drupal\Core\Routing\Access\AccessInterface;
 use Drupal\Core\Session\AccountInterface;

core/modules/book/lib/Drupal/book/BookExport.php

@@ -9,7 +9,6 @@
 
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\node\NodeInterface;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
  * Provides methods for exporting book to different formats.

core/modules/book/lib/Drupal/book/BookManager.php

@@ -10,9 +10,7 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Database\Connection;
-use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Language\Language;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Core\Config\ConfigFactoryInterface;

core/modules/book/lib/Drupal/book/Controller/BookController.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\book\Controller;
 
-use Drupal\book\BookManager;
 use Drupal\book\BookExport;
 use Drupal\book\BookManagerInterface;
 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;

core/modules/book/lib/Drupal/book/Form/BookAdminEditForm.php

@@ -12,7 +12,6 @@
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Entity\EntityStorageControllerInterface;
 use Drupal\Core\Form\FormBase;
-use Drupal\menu_link\MenuLinkStorageControllerInterface;
 use Drupal\node\NodeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 

core/modules/book/lib/Drupal/book/Tests/BookTest.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\book\Tests;
 
-use Drupal\Core\Language\Language;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\simpletest\WebTestBase;