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diff --git a/web/core/lib/Drupal/Core/Routing/LazyRouteFilter.php b/web/core/lib/Drupal/Core/Routing/LazyRouteFilter.php
deleted file mode 100644
index 10f3d517b..000000000
--- a/web/core/lib/Drupal/Core/Routing/LazyRouteFilter.php
+++ /dev/null
@@ -1,102 +0,0 @@
-<?php
-
-namespace Drupal\Core\Routing;
-
-use Symfony\Cmf\Component\Routing\NestedMatcher\RouteFilterInterface as BaseRouteFilterInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\Routing\RouteCollection;
-
-/**
- * A route filter which lazily loads route filters, depending on the route.
- *
- * We lazy initialize route filters, because otherwise all dependencies of all
- * route filters are initialized on every request, which is slow. However, with
- * the use of lazy loading, dependencies are instantiated only when used.
- */
-class LazyRouteFilter implements BaseRouteFilterInterface, ContainerAwareInterface {
-
-  use ContainerAwareTrait;
-
-  /**
-   * Array of route filter service IDs.
-   *
-   * @var array
-   */
-  protected $serviceIds = [];
-
-  /**
-   * The initialized route filters.
-   *
-   * @var \Drupal\Core\Routing\RouteFilterInterface[]
-   */
-  protected $filters = NULL;
-
-  /**
-   * Constructs the LazyRouteEnhancer object.
-   *
-   * @param $service_ids
-   *   Array of route filter service IDs.
-   */
-  public function __construct($service_ids) {
-    $this->serviceIds = $service_ids;
-  }
-
-  /**
-   * For each route, filter down the route collection.
-   *
-   * @param \Symfony\Component\Routing\RouteCollection $route_collection
-   *   A collection of routes to apply filter checks to.
-   */
-  public function setFilters(RouteCollection $route_collection) {
-    /** @var \Symfony\Component\Routing\Route $route **/
-    foreach ($route_collection as $route) {
-      $service_ids = [];
-      foreach ($this->getFilters() as $service_id => $filter) {
-        if ($filter instanceof RouteFilterInterface && $filter->applies($route)) {
-          $service_ids[] = $service_id;
-        }
-      }
-      if ($service_ids) {
-        $route->setOption('_route_filters', array_unique($service_ids));
-      }
-    }
-  }
-
-  /**
-   * For each route, gets a list of applicable enhancers to the route.
-   *
-   * @return \Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface[]|\Drupal\Core\Routing\Enhancer\RouteEnhancerInterface[]
-   */
-  protected function getFilters() {
-    if (!isset($this->filters)) {
-      foreach ($this->serviceIds as $service_id) {
-        $this->filters[$service_id] = $this->container->get($service_id);
-      }
-    }
-    return $this->filters;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function filter(RouteCollection $collection, Request $request) {
-    $filter_ids = [];
-    foreach ($collection->all() as $route) {
-      $filter_ids = array_merge($filter_ids, $route->getOption('_route_filters') ?: []);
-    }
-    $filter_ids = array_unique($filter_ids);
-
-    if (isset($filter_ids)) {
-      foreach ($filter_ids as $filter_id) {
-        if ($filter = $this->container->get($filter_id, ContainerInterface::NULL_ON_INVALID_REFERENCE)) {
-          $collection = $filter->filter($collection, $request);
-        }
-      }
-    }
-    return $collection;
-  }
-
-}