XDG_DATA_DIRS: Do not include /usr/share/gnome

/usr/share/gnome is used by GNOME for GNOME-specifics.

For instance, it's used by gnome-menus to blacklist blueman-manager
in /usr/share/gnome/applications.

Author: clefebvre

debian/55cinnamon-session_gnomerc

@@ -11,12 +11,8 @@ case "$BASESTARTUP" in
     if [ -r "$GNOMERC" ]; then
       . "$GNOMERC"
     fi
-    # We prepend /usr/share/gnome since its defaults.list actually points
-    # to /etc so it is configurable.
     if [ -z "$XDG_DATA_DIRS" ]; then
-      XDG_DATA_DIRS=/usr/share/gnome:/usr/local/share/:/usr/share/
-    else
-      XDG_DATA_DIRS=/usr/share/gnome:"$XDG_DATA_DIRS"
+      XDG_DATA_DIRS=/usr/local/share/:/usr/share/
     fi
     export XDG_DATA_DIRS
     ;;