[mutter] clutter: Remove leftover wayland backend references

[Jonas Ådahl <jadahl src gnome org>]

commit a1bedd4b1c32bd60b3faece3890f07c914b9c786
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed May 4 16:01:39 2016 +0800

    clutter: Remove leftover wayland backend references
    
    https://bugzilla.gnome.org/show_bug.cgi?id=768976

 clutter/clutter/clutter-backend.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/clutter/clutter/clutter-backend.c b/clutter/clutter/clutter-backend.c
index b512d70..f66370c 100644
--- a/clutter/clutter/clutter-backend.c
+++ b/clutter/clutter/clutter-backend.c
@@ -517,9 +517,6 @@ static const struct {
 #ifdef CLUTTER_WINDOWING_X11
   { CLUTTER_WINDOWING_X11, clutter_backend_x11_new },
 #endif
-#ifdef CLUTTER_WINDOWING_WAYLAND
-  { CLUTTER_WINDOWING_WAYLAND, clutter_backend_wayland_new },
-#endif
 #ifdef CLUTTER_WINDOWING_EGL
   { CLUTTER_WINDOWING_EGL, clutter_backend_egl_native_new },
 #endif