[mutter] compositor: Remove unused stage pointer

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

commit 578c30792aa2d893b23334d0e0e48953fc69f563
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri May 29 23:51:33 2020 +0200

    compositor: Remove unused stage pointer
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1285

 src/compositor/compositor.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/src/compositor/compositor.c b/src/compositor/compositor.c
index ad37fa03e6..9afb1a5eae 100644
--- a/src/compositor/compositor.c
+++ b/src/compositor/compositor.c
@@ -116,8 +116,6 @@ typedef struct _MetaCompositorPrivate
 
   gboolean server_time_is_monotonic_time;
 
-  ClutterActor *stage;
-
   ClutterActor *window_group;
   ClutterActor *top_window_group;
   ClutterActor *feedback_group;