[mutter] renderer/native: Remove unused field

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

commit 5d32b251ed4b5edb89cfeeff59d234b7e2563ff3
Author: Dor Askayo <dor askayo gmail com>
Date:   Sun Feb 7 12:51:44 2021 +0200

    renderer/native: Remove unused field
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1715>

 src/backends/native/meta-renderer-native.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/src/backends/native/meta-renderer-native.c b/src/backends/native/meta-renderer-native.c
index c4df1407c8..23883fd185 100644
--- a/src/backends/native/meta-renderer-native.c
+++ b/src/backends/native/meta-renderer-native.c
@@ -78,8 +78,6 @@ struct _MetaRendererNative
 
   GHashTable *gpu_datas;
 
-  CoglClosure *swap_notify_idle;
-
   GList *pending_mode_set_views;
   gboolean pending_mode_set;
   guint mode_set_failed_feedback_source_id;