More delete options and cleanup of code

src/graphics/draw/MenuHandler.h

@@ -45,6 +45,7 @@ class menuHandler
         throttle_message,
         message_response_menu,
         message_viewmode_menu,
+        delete_messages_menu,
         node_name_length_menu,
         FrameToggles,
         DisplayUnits
@@ -64,6 +65,7 @@ class menuHandler
     static void ClockFacePicker();
     static void messageResponseMenu();
     static void messageViewModeMenu();
+    static void deleteMessagesMenu();
     static void homeBaseMenu();
     static void textMessageBaseMenu();
     static void systemBaseMenu();