[gtk+] wayland: Remove an unused vfunc

[Matthias Clasen <matthiasc src gnome org>]

commit 9bfc8371fe3a5a08f841a6c008dafe3ff39d3841
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Apr 3 18:17:16 2016 -0400

    wayland: Remove an unused vfunc

 gdk/wayland/gdkscreen-wayland.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/gdk/wayland/gdkscreen-wayland.c b/gdk/wayland/gdkscreen-wayland.c
index 0109ebf..918b1ed 100644
--- a/gdk/wayland/gdkscreen-wayland.c
+++ b/gdk/wayland/gdkscreen-wayland.c
@@ -76,8 +76,6 @@ struct _GdkWaylandScreen
 struct _GdkWaylandScreenClass
 {
   GdkScreenClass parent_class;
-
-  void (* window_manager_changed) (GdkWaylandScreen *screen_wayland);
 };
 
 #define OUTPUT_VERSION_WITH_DONE 2