MAGETWO-57908: Automate - MAGETWO-49035 Password protection for modifying user

- Adressing review comments.

Author: ielkhalifa

dev/tests/functional/tests/app/Magento/Security/Test/TestCase/LockAdminUserWhenEditingUserTest.php

@@ -88,7 +88,7 @@ public function test(
         $attempts,
         User $customAdmin,
         User $user,
-        $configData = null
+        $configData 
     ) {
         $this->configData = $configData;