[mutter] wayland: Remove some extraneous code

[Jasper St. Pierre <jstpierre src gnome org>]

commit f5e77d7f63084032ec5a7012d47de5542de95c59
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Apr 11 23:31:02 2014 -0700

    wayland: Remove some extraneous code
    
    This is already handled by the double_buffered_state_reset at the end.

 src/wayland/meta-wayland-surface.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/src/wayland/meta-wayland-surface.c b/src/wayland/meta-wayland-surface.c
index 82535dc..25c4f32 100644
--- a/src/wayland/meta-wayland-surface.c
+++ b/src/wayland/meta-wayland-surface.c
@@ -377,12 +377,6 @@ commit_double_buffered_state (MetaWaylandSurface             *surface,
 
   g_list_foreach (surface->subsurfaces, parent_surface_committed, NULL);
 
-  if (pending->buffer)
-    {
-      wl_list_remove (&pending->buffer_destroy_listener.link);
-      pending->buffer = NULL;
-    }
-
   /* wl_surface.frame */
   wl_list_insert_list (&compositor->frame_callbacks, &pending->frame_callback_list);
   wl_list_init (&pending->frame_callback_list);