wayland: Don't pass the shell and compositor down to Cogl
wayland: Don't pass the shell and compositor down to Cogl

The Wayland 1.0 API allows orthoganal components of an application to
query the shell and compositor themselves by querying their own
wl_registry. The corresponding API in Cogl has been removed so Clutter
shouldn't call it anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=703878

jigpu/clutter,jigpu/clutter,djdeath/clutter,Distrotech/clutter,ebassi/clutter,GNOME/clutter,ebassi/clutter,djdeath/clutter,Distrotech/clutter,jigpu/clutter,djdeath/clutter,Distrotech/clutter,Distrotech/clutter,GNOME/clutter,GNOME/clutter,ebassi/clutter,jigpu/clutter,jigpu/clutter,djdeath/clutter,djdeath/clutter,djdeath/clutter,Distrotech/clutter,GNOME/clutter,GNOME/clutter,Distrotech/clutter,ebassi/clutter,jigpu/clutter,ebassi/clutter