Global Menu is one of the new changes introduced in Ubuntu 11.10. Many users who are used to the Classic Gnome Desktop find the Global menu a discomfort and not satisfied with the way the application menu was displayed. Open the Nautilus file manager and you will find its menus are displayed in the Global menu of the Gnome Panel.  This makes accessing applications quite inconvenient.

This how to explains how to remove the Global menu and get the integrated menu back in Unity.

Use the following command to remove the Global Menu

sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt

After the execution of the command, log out and log in back.

Incase, you want to get the Global menu back, you can install the same again with the following command and restart the system

sudo apt-get install appmenu-gtk3 appmenu-gtk appmenu-qt