[gtk+] Drop gdk_screen_get_toplevel_windows

[Matthias Clasen <matthiasc src gnome org>]

commit 68a61e9ac6c7c1be5cc8c3c31450296afc107634
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Oct 31 20:49:50 2017 -0400

    Drop gdk_screen_get_toplevel_windows

 docs/reference/gdk/gdk4-sections.txt |    4 ---
 gdk/gdkscreen.h                      |    3 --
 gdk/gdkwindow.c                      |   39 ----------------------------------
 3 files changed, 0 insertions(+), 46 deletions(-)
---
diff --git a/docs/reference/gdk/gdk4-sections.txt b/docs/reference/gdk/gdk4-sections.txt
index 1d82d17..564d7db 100644
--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -174,11 +174,7 @@ gdk_display_manager_get_type
 <TITLE>GdkScreen</TITLE>
 GdkScreen
 gdk_screen_get_default
-gdk_screen_get_root_window
 gdk_screen_get_display
-gdk_screen_get_toplevel_windows
-gdk_screen_get_resolution
-gdk_screen_set_resolution
 
 <SUBSECTION Standard>
 GDK_SCREEN
diff --git a/gdk/gdkscreen.h b/gdk/gdkscreen.h
index 6c77d48..26b89a5 100644
--- a/gdk/gdkscreen.h
+++ b/gdk/gdkscreen.h
@@ -45,9 +45,6 @@ GDK_AVAILABLE_IN_ALL
 GdkDisplay * gdk_screen_get_display           (GdkScreen   *screen);
 
 GDK_AVAILABLE_IN_ALL
-GList *      gdk_screen_get_toplevel_windows  (GdkScreen   *screen);
-
-GDK_AVAILABLE_IN_ALL
 GdkScreen *gdk_screen_get_default (void);
 
 G_END_DECLS
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 016b20d..ac7b191 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -1905,45 +1905,6 @@ gdk_window_remove_filter (GdkWindow     *window,
 }
 
 /**
- * gdk_screen_get_toplevel_windows:
- * @screen: The #GdkScreen where the toplevels are located.
- *
- * Obtains a list of all toplevel windows known to GDK on the screen @screen.
- * A toplevel window has no parent window.
- *
- * The returned list should be freed with g_list_free(), but
- * its elements need not be freed.
- *
- * Returns: (transfer container) (element-type GdkWindow):
- *     list of toplevel windows, free with g_list_free()
- *
- * Since: 2.2
- **/
-GList *
-gdk_screen_get_toplevel_windows (GdkScreen *screen)
-{
-  GdkWindow * root_window;
-  GList *new_list = NULL;
-  GList *tmp_list;
-
-  g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
-
-  root_window = gdk_screen_get_root_window (screen);
-
-  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;
-}
-
-/**
  * gdk_window_is_visible:
  * @window: a #GdkWindow
  *