backend: Remove usage of CLUTTER_STAGE_TYPE

It's only used for debugging purposes, and it's of limited usage since
the stage creation is deferred to the backend implementation itself.

clutter/wayland/clutter-backend-wayland.c

@@ -47,7 +47,6 @@
 #include "clutter-main.h"
 #include "clutter-private.h"
 #include "clutter-stage-private.h"
-#include "clutter-version.h"
 
 static ClutterBackendWayland *backend_singleton = NULL;
 
@@ -622,9 +621,6 @@ clutter_backend_wayland_create_stage (ClutterBackend  *backend,
   ClutterStageWindow *stage;
   ClutterStageWayland *stage_wayland;
 
-  CLUTTER_NOTE (BACKEND, "Creating stage of type '%s'",
-                g_type_name (CLUTTER_STAGE_TYPE));
-
   stage = g_object_new (CLUTTER_TYPE_STAGE_WAYLAND, NULL);
 
   stage_wayland = CLUTTER_STAGE_WAYLAND (stage);