diff --git a/core/lib/Drupal/Core/Cache/MemoryBackend.php b/core/lib/Drupal/Core/Cache/MemoryBackend.php
index a0d32bd..c517fb4 100644
--- a/core/lib/Drupal/Core/Cache/MemoryBackend.php
+++ b/core/lib/Drupal/Core/Cache/MemoryBackend.php
@@ -20,15 +20,6 @@ class MemoryBackend implements CacheBackendInterface, CacheTagsInvalidatorInterf
   protected $cache = array();
 
   /**
-   * Constructs a MemoryBackend object.
-   *
-   * @param string $bin
-   *   The cache bin for which the object is created.
-   */
-  public function __construct($bin) {
-  }
-
-  /**
    * {@inheritdoc}
    */
   public function get($cid, $allow_invalid = FALSE) {
diff --git a/core/lib/Drupal/Core/Cache/MemoryBackendFactory.php b/core/lib/Drupal/Core/Cache/MemoryBackendFactory.php
index 221ee1a..4457e59 100644
--- a/core/lib/Drupal/Core/Cache/MemoryBackendFactory.php
+++ b/core/lib/Drupal/Core/Cache/MemoryBackendFactory.php
@@ -16,7 +16,7 @@ class MemoryBackendFactory implements CacheFactoryInterface {
    */
   function get($bin) {
     if (!isset($this->bins[$bin])) {
-      $this->bins[$bin] = new MemoryBackend($bin);
+      $this->bins[$bin] = new MemoryBackend();
     }
     return $this->bins[$bin];
   }