[mutter] (4 commits) Non-fast-forward update to branch gbsneto/effects-cleanups

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'gbsneto/effects-cleanups' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  0c138d2... clutter/offscreen-effect: Remove CoglMaterial from public A
  c1128b1... clutter/offscreen-effect: Undeprecate clutter_offscreen_eff
  023031f... clutter/deform-effect: Use clutter_offscreen_effect_get_tar
  ca537e7... clutter/offscreen-effect: Remove clutter_offscreen_effect_g

Commits added to the branch:

  640632e... clutter/offscreen-effect: Remove CoglMaterial from public A
  f8e22d9... clutter/offscreen-effect: Undeprecate clutter_offscreen_eff
  bd89c69... clutter/deform-effect: Use clutter_offscreen_effect_get_tar
  ddd68d7... clutter/offscreen-effect: Remove clutter_offscreen_effect_g