diff --git a/core/lib/Drupal/Core/Routing/RouteBuilderIndicator.php b/core/lib/Drupal/Core/Routing/RouteBuilderIndicator.php
index 3496ddd..da99bf2 100644
--- a/core/lib/Drupal/Core/Routing/RouteBuilderIndicator.php
+++ b/core/lib/Drupal/Core/Routing/RouteBuilderIndicator.php
@@ -34,13 +34,6 @@ public function __construct(StateInterface $state) {
   /**
    * {@inheritdoc}
    */
-  public function resetCache() {
-    $this->state->resetCache();
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function setRebuildNeeded() {
     $this->state->set(static::REBUILD_NEEDED, TRUE);
   }
@@ -65,7 +58,7 @@ public function setRebuildDone() {
   public function isRebuildStillNeeded() {
     // To absolutely ensure that the router rebuild is required, reset the cache
     // in case they were set by another process.
-    $this->resetCache();
+    $this->state->resetCache();
     return $this->isRebuildNeeded();
   }
 
diff --git a/core/lib/Drupal/Core/Routing/RouteBuilderIndicatorInterface.php b/core/lib/Drupal/Core/Routing/RouteBuilderIndicatorInterface.php
index 7838acb..fcd8495 100644
--- a/core/lib/Drupal/Core/Routing/RouteBuilderIndicatorInterface.php
+++ b/core/lib/Drupal/Core/Routing/RouteBuilderIndicatorInterface.php
@@ -15,11 +15,6 @@
   const REBUILD_NEEDED = 'router_rebuild_needed';
 
   /**
-   * Reset the router builder indicator cache.
-   */
-  public function resetCache();
-
-  /**
    * Sets the router to be rebuilt next time the kernel is terminated.
    *
    * @see \Drupal\Core\EventSubscriber\RouterRebuildSubscriber::onKernelTerminate()