[mutter] (18 commits) Non-fast-forward update to branch wip/carlosg/fix-dnd-crash

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/fix-dnd-crash' 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:

  77fa027... wayland: Drop unused wl_signal structs
  13ab9d6... wayland: Avoid redundant cancel() call
  cbee580... wayland: Do not cancel data source on offer destruction
  04dbf05... wayland: Move "ownership" of the DnD selection source to th

Commits added to the branch:

  d992722... cogl: correct check for COGL_OFFSCREEN_DISABLE_DEPTH_AND_ST (*)
  d48fec8... cogl: drop extraneous parentheses (*)
  d3afe43... test: use correct enum (*)
  c039764... clutter: Remove unused deprecated/clutter-keysyms.h (*)
  6da568e... clutter: Remove unused deprecated/clutter-stage-manager.h (*)
  375d35b... clutter: Remove unused deprecated/clutter-animatable.h (*)
  0a41f0f... clutter: Remove unused deprecated/clutter-bin-layout.h (*)
  3e9f847... clutter: Remove unused deprecated clutter_container_{add,re (*)
  c74f4f6... clutter: Remove some unused deprecated clutter_table_layout (*)
  24b38a5... clutter: Remove some unused deprecated clutter_animation AP (*)
  293ec0a... clutter: Remove some unused deprecated clutter_state API (*)
  c4d1e15... clutter: Remove some unused deprecated clutter_alpha API (*)
  289e24f... clutter: Remove some unused deprecated clutter_actor API (*)
  7adaaab... clutter: Remove deprecated ClutterTableLayout (*)
  46b3811... wayland: Drop unused wl_signal structs
  e7b2f96... wayland: Avoid redundant cancel() call
  48639ac... wayland: Do not cancel data source on offer destruction
  e5af790... wayland: Move "ownership" of the DnD selection source to th

(*) This commit already existed in another branch; no separate mail sent