[mutter] (7 commits) Non-fast-forward update to branch wip/carlosg/cleanups

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/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:

  4b31939... backends: Drop unused function
  f2a8dce... core: Remove unused struct field
  31f744c... core: Do not force cursor renderer update here
  52958a3... backends: Drop unused function
  f787fde... backends/native: Remove unused function
  1ec815d... clutter: Drop clutter_event_peek()
  a81dbde... clutter: Drop _clutter_clear_events_queue_for_stage()

Commits added to the branch:

  df89c30... backends: Drop unused function
  978e651... core: Remove unused struct field
  a72ab76... core: Do not force cursor renderer update here
  f7d0f2c... backends: Drop unused function
  41042b1... backends/native: Remove unused function
  2bd9461... clutter: Drop clutter_event_peek()
  7cddd97... clutter: Drop _clutter_clear_events_queue_for_stage()