diff --git a/qtpy/QtWidgets.py b/qtpy/QtWidgets.py
index 1b225421..1edbdbf5 100644
--- a/qtpy/QtWidgets.py
+++ b/qtpy/QtWidgets.py
@@ -213,25 +213,11 @@ def __getattr__(name):
 
 # Make `addAction` compatible with Qt6 >= 6.4
 if PYQT5 or PYSIDE2 or parse(_qt_version) < parse("6.4"):
-
-    class _QMenu(QMenu):
-        old_add_action = QMenu.addAction
-
-        def addAction(self, *args):
-            return add_action(
-                self,
-                *args,
-                old_add_action=_QMenu.old_add_action,
-            )
-
     _menu_add_action = partialmethod(
         add_action,
         old_add_action=QMenu.addAction,
     )
     QMenu.addAction = _menu_add_action
-    # Despite the previous line!
-    if QMenu.addAction is not _menu_add_action:
-        QMenu = _QMenu
 
     class _QToolBar(QToolBar):
         old_add_action = QToolBar.addAction