This separator should only be there if gnome-app-install is installed, though I don't know how to achieve that. The menu currently looks ugly and plain unpolished if g-a-i is not installed.
** Changed in: gnome-menus (Ubuntu) Status: Unconfirmed => Confirmed -- Menu separator can not be removed https://launchpad.net/bugs/36979 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs