[metacity] compositor: remove unneeded check

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 0ace4ce8fc26ab328f41581b97e711fe03dda04e
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Mar 6 17:14:12 2017 +0200

    compositor: remove unneeded check
    
    We do same check in meta_window_new.

 src/compositor/meta-compositor-xrender.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/src/compositor/meta-compositor-xrender.c b/src/compositor/meta-compositor-xrender.c
index c254d35..58c85b2 100644
--- a/src/compositor/meta-compositor-xrender.c
+++ b/src/compositor/meta-compositor-xrender.c
@@ -2058,9 +2058,6 @@ add_win (MetaCompositorXRender *xrender,
   MetaCompWindow *cw;
   gulong event_mask;
 
-  if (xwindow == xrender->overlay_window)
-    return;
-
   /* If already added, ignore */
   if (find_window (xrender, xwindow) != NULL)
     return;