- Do not require gnome-packagekit by gnome_x11: we have a specific
sw_management_gnome pattern, which supplements the generic
sw_management plus the basic gnome package, and that's where we
also should (and do) recommend gnome-packagekit.

- Do not recommend speech-dispatcher-module-espeak: we recommend
speech-dispatcher, the rest is handled by dependencies from the
packages (recommends and supplements).
- No longer recommend gnome-menus: GNOME 3 is not using menu
structures. This package is used by extension-classic, and if
that extension is installed, gnome-menus comes in as a dep.
- Stop recommending samba: samba is the server, which makes no
sense to be recommended by the desktop pattern.