diff --git a/core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php b/core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php
index e02e423..882681b 100644
--- a/core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php
+++ b/core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php
@@ -21,15 +21,6 @@
   public function getConjunction();
 
   /**
-   * Implements \Countable::count().
-   *
-   * Returns the size of this conditional. The size of the conditional is the
-   * size of its conditional array minus one, because one element is the the
-   * conjunction.
-   */
-  public function count();
-
-  /**
    * Adds a condition.
    *
    * @param string|ConditionAggregateInterface $field