[mutter] window: Stop a gcc warning

[Jasper St. Pierre <jstpierre src gnome org>]

commit 335d211204dbb557d7c89ce782ffb548e574f675
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sat Mar 17 06:44:46 2012 -0400

    window: Stop a gcc warning
    
    "warning: 'match_tile_mode' may be used uninitialized in this function", it
    complains. It thinks it's not unused because of other values of
    window->tile_mode, but other complex logic ensures that it can't be
    META_TILE_MAXIMIZED, so this is a safe commit.

 src/core/window.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 89b0390..977fd77 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -10764,10 +10764,7 @@ meta_window_compute_tile_match (MetaWindow *window)
       !META_WINDOW_TILED_SIDE_BY_SIDE (window))
     return;
 
-  if (META_WINDOW_TILED_LEFT (window))
-    match_tile_mode = META_TILE_RIGHT;
-  else if (META_WINDOW_TILED_RIGHT (window))
-    match_tile_mode = META_TILE_LEFT;
+  match_tile_mode = window->tile_mode;
 
   stack = window->screen->stack;