[mutter] clutter/timeline: Don't manually set frame clock in set_actor()

[Marge Bot <marge-bot src gnome org>]

commit 7871ab5437e579a424b6c5cee2bd58621914145f
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Mon Dec 14 11:18:41 2020 +0100

    clutter/timeline: Don't manually set frame clock in set_actor()
    
    In clutter_timeline_set_actor() we currently always unset the
    priv->frame_clock pointer of the old actor when a new actor gets set.
    The priv->frame_clock pointer takes a reference on the ClutterFrameClock
    though, so we leak ClutterFrameClocks here.
    
    To fix it, simply rely on update_frame_clock(), which will call
    set_frame_clock_internal() unconditionally to update the
    priv->frame_clock pointer for us.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1632>

 clutter/clutter/clutter-timeline.c | 5 -----
 1 file changed, 5 deletions(-)
---
diff --git a/clutter/clutter/clutter-timeline.c b/clutter/clutter/clutter-timeline.c
index 23392fc99d..03b9236454 100644
--- a/clutter/clutter/clutter-timeline.c
+++ b/clutter/clutter/clutter-timeline.c
@@ -473,11 +473,6 @@ clutter_timeline_set_actor (ClutterTimeline *timeline,
       g_clear_signal_handler (&priv->stage_stage_views_handler_id, priv->stage);
       priv->stage = NULL;
       priv->actor = NULL;
-
-      if (priv->is_playing)
-        maybe_remove_timeline (timeline);
-
-      priv->frame_clock = NULL;
     }
 
   priv->actor = actor;