Remove gnome-version.xml
This is crufty and no longer useful. gnome-control-center will now display GNOME Shell version instead of gnome-desktop version, which is a more meaningful version to display anyway.
With this change, we'll no longer have to spin releases of gnome-desktop with no changes.
See also: gnome-shell#5406 (closed) See also: gnome-control-center!1299 (merged)