Issue #3227588: Remove duplicate calls to validation in updater now that caller should validate

src/BatchProcessor.php

@@ -90,15 +90,6 @@ class BatchProcessor {
     }
   }
 
-  /**
-   * Calls the updater's validateStaged() method.
-   *
-   * @see \Drupal\automatic_updates\Updater::validateStaged()
-   */
-  public static function validateStaged() {
-    static::getUpdater()->validateStaged();
-  }
-
   /**
    * Finishes the batch job.
    *