[gtk+] Drop gdk_display_get_toplevel_windows

[Matthias Clasen <matthiasc src gnome org>]

commit c16a0bd9b775b01053a7c778a6306c89bfd239dd
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Nov 5 18:39:01 2017 -0500

    Drop gdk_display_get_toplevel_windows
    
    Nothing uses this private api anymore, so we can drop it.

 gdk/gdkdisplay.c        |   22 ----------------------
 gdk/gdkdisplayprivate.h |    1 -
 2 files changed, 0 insertions(+), 23 deletions(-)
---
diff --git a/gdk/gdkdisplay.c b/gdk/gdkdisplay.c
index 47eb0b7..9746714 100644
--- a/gdk/gdkdisplay.c
+++ b/gdk/gdkdisplay.c
@@ -2237,25 +2237,3 @@ gdk_display_get_root_window (GdkDisplay *display)
 {
   return GDK_DISPLAY_GET_CLASS (display)->get_root_window (display);
 }
-
-GList *
-gdk_display_get_toplevel_windows (GdkDisplay *display)
-{
-  GdkWindow * root_window;
-  GList *new_list = NULL;
-  GList *tmp_list;
-
-  root_window = gdk_display_get_root_window (display);
-
-  tmp_list = root_window->children;
-  while (tmp_list)
-    {
-      GdkWindow *w = tmp_list->data;
-
-      if (w->window_type != GDK_WINDOW_FOREIGN)
-        new_list = g_list_prepend (new_list, w);
-      tmp_list = tmp_list->next;
-    }
-
-  return new_list;
-}
diff --git a/gdk/gdkdisplayprivate.h b/gdk/gdkdisplayprivate.h
index ecba645..40e1eea 100644
--- a/gdk/gdkdisplayprivate.h
+++ b/gdk/gdkdisplayprivate.h
@@ -300,7 +300,6 @@ void                gdk_display_setting_changed       (GdkDisplay       *display
                                                        const char       *name);
 
 GdkWindow *         gdk_display_get_root_window       (GdkDisplay       *display);
-GList *             gdk_display_get_toplevel_windows  (GdkDisplay       *display);
 
 G_END_DECLS