[cogl] winsys-wgl: Don't include cogl.h

[Neil Roberts <nroberts src gnome org>]

commit 91af97a2a27ab5ad3e7eaabebd03503b685d4d42
Author: Neil Roberts <neil linux intel com>
Date:   Mon Jan 20 15:52:15 2014 +0000

    winsys-wgl: Don't include cogl.h
    
    Since 248a76f5eac7e5ae4fb45208577f9a55360812a7 cogl.h can no longer be
    included in internal source files so the WGL winsys was no longer
    compiling.
    
    Reviewed-by: Robert Bragg <robert linux intel com>

 cogl/winsys/cogl-winsys-wgl.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/cogl/winsys/cogl-winsys-wgl.c b/cogl/winsys/cogl-winsys-wgl.c
index 76abba8..004b88c 100644
--- a/cogl/winsys/cogl-winsys-wgl.c
+++ b/cogl/winsys/cogl-winsys-wgl.c
@@ -36,8 +36,6 @@
 
 #include <windows.h>
 
-#include "cogl.h"
-
 #include "cogl-util.h"
 #include "cogl-winsys-private.h"
 #include "cogl-context-private.h"