Merge branch '7.0' into 7.1

* 7.0:
  [Security] Remove an unneeded comment

Author: javiereguiluz

security/custom_authenticator.rst

@@ -342,7 +342,7 @@ would initialize the passport like this::
             $username = $request->getPayload()->get('username');
             $csrfToken = $request->getPayload()->get('csrf_token');
 
-            // ... validate no parameter is empty
+            // ...
 
             return new Passport(
                 new UserBadge($username),