[mutter] cogl: Remove unneeded GLX includes from cogl-framebuffer-private.h

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 9325bd9d8ef79525217cc371d5caecae41d0ceee
Author: Adam Jackson <ajax redhat com>
Date:   Tue Dec 17 10:37:40 2019 -0500

    cogl: Remove unneeded GLX includes from cogl-framebuffer-private.h
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/977

 cogl/cogl/cogl-framebuffer-private.h | 5 -----
 1 file changed, 5 deletions(-)
---
diff --git a/cogl/cogl/cogl-framebuffer-private.h b/cogl/cogl/cogl-framebuffer-private.h
index 27d04af96..9700fb1d6 100644
--- a/cogl/cogl/cogl-framebuffer-private.h
+++ b/cogl/cogl/cogl-framebuffer-private.h
@@ -45,11 +45,6 @@
 #include <X11/Xlib.h>
 #endif
 
-#ifdef COGL_HAS_GLX_SUPPORT
-#include <GL/glx.h>
-#include <GL/glxext.h>
-#endif
-
 typedef enum _CoglFramebufferType {
   COGL_FRAMEBUFFER_TYPE_ONSCREEN,
   COGL_FRAMEBUFFER_TYPE_OFFSCREEN