[mutter] display: Remove unused grab variables

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

commit cd4e6fcdeee26eb591e291a33c5047f31edbe41b
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Apr 20 13:05:08 2014 -0400

    display: Remove unused grab variables

 src/core/display-private.h |    1 -
 src/core/display.c         |   14 --------------
 2 files changed, 0 insertions(+), 15 deletions(-)
---
diff --git a/src/core/display-private.h b/src/core/display-private.h
index 9622817..74b5989 100644
--- a/src/core/display-private.h
+++ b/src/core/display-private.h
@@ -207,7 +207,6 @@ struct _MetaDisplay
   gboolean    grab_threshold_movement_reached; /* raise_on_click == FALSE.    */
   MetaResizePopup *grab_resize_popup;
   GTimeVal    grab_last_moveresize_time;
-  GList*      grab_old_window_stacking;
   MetaEdgeResistanceData *grab_edge_resistance_data;
   unsigned int grab_last_user_action_was_snap;
   guint32     grab_timestamp;
diff --git a/src/core/display.c b/src/core/display.c
index bc6d1fc..fd7a496 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -482,7 +482,6 @@ meta_display_open (void)
   the_display->focus_serial = 0;
   the_display->server_focus_window = None;
   the_display->server_focus_serial = 0;
-  the_display->grab_old_window_stacking = NULL;
 
   the_display->mouse_mode = TRUE; /* Only relevant for mouse or sloppy focus */
   the_display->allow_terminal_deactivation = TRUE; /* Only relevant for when a
@@ -1023,9 +1022,6 @@ meta_display_close (MetaDisplay *display,
     g_source_remove (display->focus_timeout_id);
   display->focus_timeout_id = 0;
 
-  if (display->grab_old_window_stacking)
-    g_list_free (display->grab_old_window_stacking);
-
   /* Stop caring about events */
   meta_display_free_events (display);
   
@@ -1931,7 +1927,6 @@ meta_display_begin_grab_op (MetaDisplay *display,
   display->grab_latest_motion_y = root_y;
   display->grab_last_moveresize_time.tv_sec = 0;
   display->grab_last_moveresize_time.tv_usec = 0;
-  display->grab_old_window_stacking = NULL;
 #ifdef HAVE_XSYNC
   display->grab_last_user_action_was_snap = FALSE;
 #endif
@@ -2013,15 +2008,6 @@ meta_display_end_grab_op (MetaDisplay *display,
         meta_window_raise (display->grab_window);
     }
 
-  if (display->grab_old_window_stacking != NULL)
-    {
-      meta_topic (META_DEBUG_WINDOW_OPS,
-                  "Clearing out the old stack position, which was %p.\n",
-                  display->grab_old_window_stacking);
-      g_list_free (display->grab_old_window_stacking);
-      display->grab_old_window_stacking = NULL;
-    }
-
   if (display->grab_have_pointer)
     {
       meta_topic (META_DEBUG_WINDOW_OPS,