[mutter] wayland: Fix output destroyed callback vfunc type

[Jonas Ådahl <jadahl src gnome org>]

commit e23e6970435c9639b2baa17ff715a28f3a25995f
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed Sep 16 14:14:38 2015 +0800

    wayland: Fix output destroyed callback vfunc type
    
    It is not a callback on a parameter signal, and get no GParamSpec passed
    to it. This fixes a crash when a surface is on a destroyed output.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=755096

 src/wayland/meta-wayland-surface.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/wayland/meta-wayland-surface.c b/src/wayland/meta-wayland-surface.c
index 0a2a21a..f619f1e 100644
--- a/src/wayland/meta-wayland-surface.c
+++ b/src/wayland/meta-wayland-surface.c
@@ -936,7 +936,6 @@ set_surface_is_on_output (MetaWaylandSurface *surface,
 
 static void
 surface_handle_output_destroy (MetaWaylandOutput *wayland_output,
-                               GParamSpec *pspec,
                                MetaWaylandSurface *surface)
 {
   set_surface_is_on_output (surface, wayland_output, FALSE);