Add remove_application_menu to main menu

spyder/plugins/completion/plugin.py

@@ -317,6 +317,30 @@ def on_statusbar_teardown(self):
         for sb in container.all_statusbar_widgets():
             self.statusbar.remove_status_widget(sb.ID)
 
+    @on_plugin_teardown(plugin=Plugins.MainMenu)
+    def on_mainmenu_teardown(self):
+        main_menu = self.get_plugin(Plugins.MainMenu)
+        signature = inspect.signature(main_menu.add_item_to_application_menu)
+
+        for args, kwargs in self.application_menus_to_create:
+            menu_id = args[0]
+            main_menu.remove_application_menu(menu_id)
+
+        for args, kwargs in self.items_to_add_to_application_menus:
+            binding = signature.bind(*args, **kwargs)
+            binding.apply_defaults()
+
+            item = binding.arguments['item']
+            menu_id = binding.arguments['menu_id']
+            item_id = None
+            if hasattr(item, 'action_id'):
+                item_id = item.action_id
+            elif hasattr(item, 'menu_id'):
+                item_id = item.menu_id
+            if item_id is not None:
+                main_menu.remove_item_from_application_menu(
+                    item_id, menu_id=menu_id)
+
     def unregister(self):
         """Stop all running completion providers."""
         for provider_name in self.providers:

spyder/plugins/mainmenu/plugin.py

@@ -262,6 +262,19 @@ def add_item_to_application_menu(self, item: ItemType,
                 menu.add_action(item, section=section, before=before,
                                 before_section=before_section, omit_id=omit_id)
 
+    def remove_application_menu(self, menu_id: str):
+        """
+        Remove a Spyder application menu.
+
+        Parameters
+        ----------
+        menu_id: str
+            The menu unique identifier string.
+        """
+        if menu_id in self._APPLICATION_MENUS:
+            menu = self._APPLICATION_MENUS.pop(menu_id)
+            self.main.menuBar().removeAction(menu.menuAction())
+
     def remove_item_from_application_menu(self, item_id: str,
                                           menu_id: Optional[str] = None):
         """