Doctrine\Common\Cache\CacheProvider::delete PHP Method

    public function delete($id)
    {
        return $this->doDelete($this->getNamespacedId($id));
    }

 /**
  * Clears the cache
  */
 public function clearCache()
 {
     if ($this->cache) {
         $this->cache->delete(self::CACHE_KEY);
     }
     $this->localCache = null;
 }