[gtk+] Drop an unused warning

[Matthias Clasen <matthiasc src gnome org>]

commit ff530ae3219a7188c05d567fdafeb807b244b7a7
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Sep 8 20:39:52 2015 -0400

    Drop an unused warning
    
    It has been ifzeroed for many, many years.

 gtk/gtkwidget.c |   11 +----------
 1 files changed, 1 insertions(+), 10 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 304e696..3b00c81 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -10664,16 +10664,7 @@ gtk_widget_get_screen (GtkWidget *widget)
   if (screen)
     return screen;
   else
-    {
-#if 0
-      g_warning (G_STRLOC ": Can't get associated screen"
-                " for a widget unless it is inside a toplevel GtkWindow\n"
-                " widget type is %s associated top level type is %s",
-                g_type_name (G_OBJECT_TYPE(G_OBJECT (widget))),
-                g_type_name (G_OBJECT_TYPE(G_OBJECT (toplevel))));
-#endif
-      return gdk_screen_get_default ();
-    }
+    return gdk_screen_get_default ();
 }
 
 /**