core/core.services.yml                             |   5 -
 .../EventSubscriber/LinkRelationshipSubscriber.php | 130 ---------------------
 2 files changed, 135 deletions(-)

diff --git a/core/core.services.yml b/core/core.services.yml
index 12041a8..24c6cca 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -1090,11 +1090,6 @@ services:
     class: Drupal\Core\Render\BareHtmlPageRenderer
     arguments: ['@renderer', '@html_response.attachments_processor']
     lazy: true
-  link_relationship_subscriber:
-    class: Drupal\Core\EventSubscriber\LinkRelationshipSubscriber
-    tags:
-      - { name: event_subscriber }
-    arguments: ['@entity.manager']
   private_key:
     class: Drupal\Core\PrivateKey
     arguments: ['@state']
diff --git a/core/lib/Drupal/Core/EventSubscriber/LinkRelationshipSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/LinkRelationshipSubscriber.php
deleted file mode 100644
index 919a10a..0000000
--- a/core/lib/Drupal/Core/EventSubscriber/LinkRelationshipSubscriber.php
+++ /dev/null
@@ -1,130 +0,0 @@
-<?php
-
-/**
- * @file Contains Drupal\Core\EventSubscriber\LinkRelationshipSubscriber.
- */
-
-namespace Drupal\Core\EventSubscriber;
-
-use Drupal\Core\Config\Entity\ConfigEntityType;
-use Drupal\Core\Entity\ContentEntityTypeInterface;
-use Drupal\Core\Entity\EntityInterface;
-use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Page\HtmlPage;
-use Drupal\Core\Page\LinkElement;
-use Symfony\Cmf\Component\Routing\RouteObjectInterface;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
-use Symfony\Component\HttpKernel\KernelEvents;
-use Symfony\Component\Routing\Route;
-
-/**
- * Dynamically add relevant link relationships to entity canonical pages.
- */
-class LinkRelationshipSubscriber implements EventSubscriberInterface {
-
-  /**
-   * @var \Drupal\Core\Entity\EntityManagerInterface
-   */
-  protected $entityManager;
-
-  /**
-   * Constructs a new LinkRelationshipSubscriber.
-   *
-   * @param EntityManagerInterface $entityManager
-   *   The entity manager service.
-   */
-  public function __construct(EntityManagerInterface $entityManager) {
-    $this->entityManager = $entityManager;
-  }
-
-  public function onKernelViewAddLinks(GetResponseForControllerResultEvent $event) {
-    $page = $event->getControllerResult();
-    if ($page instanceof HtmlPage) {
-      $request = $event->getRequest();
-      $route_name = $request->attributes->get(RouteObjectInterface::ROUTE_NAME);
-      $route = $request->attributes->get(RouteObjectInterface::ROUTE_OBJECT);
-
-      if ($entity_type = $this->getCanonicalEntity($route_name)) {
-        if ($entity = $this->getPrimaryEntity($route, $entity_type, $request)) {
-          $this->addLinks($entity, $page);
-        }
-      }
-    }
-  }
-
-  /**
-   * Extracts the entity for which this route is the canonical path.
-   *
-   * @param Route $route
-   *   The currently active route object.
-   * @param ContentEntityTypeInterface $entity_type
-   *   The entity type definition for the entity whose canonical route we
-   *   are on.
-   * @param Request $request
-   *   The current request object.
-   * @return EntityInterface|null
-   *   The primary entity for this canonical route, or null if none.
-   */
-  protected function getPrimaryEntity(Route $route, ContentEntityTypeInterface $entity_type, Request $request) {
-    $parameter_definitions = $route->getOption('parameters');
-    $entity_name = $entity_type->id();
-    if (!empty($parameter_definitions[$entity_name])) {
-      return $request->attributes->get($entity_name);
-    }
-  }
-
-  /**
-   * Adds link relationships to a page based on the primary object.
-   *
-   * @param EntityInterface $entity
-   *    The entity from which to extract link relationships.
-   * @param HtmlPage $page
-   *   the page object to enhance with relevant links.
-   */
-  protected function addLinks(EntityInterface $entity, HtmlPage $page) {
-    foreach ($entity->uriRelationships() as $rel) {
-      $page->addLinkElement(new LinkElement($entity->url($rel), $rel));
-      if ($rel == 'canonical') {
-        // Set the non-aliased canonical path as a default shortlink.
-        $page->addLinkElement(new LinkElement($entity->url($rel, ['alias' => TRUE]), 'shortlink'));
-      }
-    }
-  }
-
-  /**
-   * Returns the entity whose canonical path we're currently on.
-   *
-   * @todo This method gets rewritten to look at the route name directly once
-   *   we have standardized the route names for auto-generation.
-   *   See https://drupal.org/node/2278567.  That approach will also be faster
-   *   than what is implemented here as it will not require any iteration.
-   *
-   * @param $route_name
-   *   The route name that is currently being handled.
-   * @return ConfigEntityType|null
-   *   The entity type definition for the entity, or null if we're not on
-   *   an entity canonical route.
-   */
-  protected function getCanonicalEntity($route_name) {
-    /* @var $definitions ContentEntityTypeInterface[] */
-    $definitions = $this->entityManager->getDefinitions();
-    foreach ($definitions as $type => $definition) {
-      if ($route_name == $definition->getLinkTemplate('canonical')) {
-        return $definition;
-      }
-    }
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function getSubscribedEvents() {
-    // In order to change the maintenance status an event subscriber with a
-    // priority between 30 and 40 should be added.
-    $events[KernelEvents::VIEW][] = array('onKernelViewAddLinks', 60);
-    return $events;
-  }
-
-}
\ No newline at end of file