[mutter] frames: Remove the destroy_event handler

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

commit ce14bde08d592e1596d8dd93529830c1c0985f58
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Jan 19 11:19:57 2015 -0800

    frames: Remove the destroy_event handler
    
    It does nothing.

 src/ui/frames.c |   20 --------------------
 1 files changed, 0 insertions(+), 20 deletions(-)
---
diff --git a/src/ui/frames.c b/src/ui/frames.c
index 9908544..ab37e6f 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -51,8 +51,6 @@ static gboolean meta_frames_button_release_event  (GtkWidget           *widget,
                                                    GdkEventButton      *event);
 static gboolean meta_frames_motion_notify_event   (GtkWidget           *widget,
                                                    GdkEventMotion      *event);
-static gboolean meta_frames_destroy_event         (GtkWidget           *widget,
-                                                   GdkEventAny         *event);
 static gboolean meta_frames_draw                  (GtkWidget           *widget,
                                                    cairo_t             *cr);
 static gboolean meta_frames_enter_notify_event    (GtkWidget           *widget,
@@ -121,7 +119,6 @@ meta_frames_class_init (MetaFramesClass *class)
   widget_class->style_updated = meta_frames_style_updated;
 
   widget_class->draw = meta_frames_draw;
-  widget_class->destroy_event = meta_frames_destroy_event;
   widget_class->button_press_event = meta_frames_button_press_event;
   widget_class->button_release_event = meta_frames_button_release_event;
   widget_class->motion_notify_event = meta_frames_motion_notify_event;
@@ -1379,23 +1376,6 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
   return TRUE;
 }
 
-static gboolean
-meta_frames_destroy_event           (GtkWidget           *widget,
-                                     GdkEventAny         *event)
-{
-  MetaUIFrame *frame;
-  MetaFrames *frames;
-
-  frames = META_FRAMES (widget);
-
-  frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
-  if (frame == NULL)
-    return FALSE;
-
-  return TRUE;
-}
-
-
 static cairo_region_t *
 get_visible_frame_border_region (MetaUIFrame *frame)
 {