[mutter] wayland: Remove an unused field from MetaWaylandFrameCallback

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

commit 12d0c98fb58626e54497b4ee3c0895e280d2e393
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Jul 10 11:07:17 2014 -0400

    wayland: Remove an unused field from MetaWaylandFrameCallback

 src/wayland/meta-wayland-private.h |    4 ----
 src/wayland/meta-wayland-surface.c |    1 -
 2 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/src/wayland/meta-wayland-private.h b/src/wayland/meta-wayland-private.h
index a43d92f..9e35e1c 100644
--- a/src/wayland/meta-wayland-private.h
+++ b/src/wayland/meta-wayland-private.h
@@ -50,10 +50,6 @@ typedef struct
 typedef struct
 {
   struct wl_list link;
-
-  /* Pointer back to the compositor */
-  MetaWaylandCompositor *compositor;
-
   struct wl_resource *resource;
 } MetaWaylandFrameCallback;
 
diff --git a/src/wayland/meta-wayland-surface.c b/src/wayland/meta-wayland-surface.c
index 8097feb..1ff253b 100644
--- a/src/wayland/meta-wayland-surface.c
+++ b/src/wayland/meta-wayland-surface.c
@@ -473,7 +473,6 @@ wl_surface_frame (struct wl_client *client,
     return;
 
   callback = g_slice_new0 (MetaWaylandFrameCallback);
-  callback->compositor = surface->compositor;
   callback->resource = wl_resource_create (client, &wl_callback_interface, META_WL_CALLBACK_VERSION, 
callback_id);
   wl_resource_set_implementation (callback->resource, NULL, callback, destroy_frame_callback);