[mutter] x11/clutter-backend: Remove unused XSynchronize() call

[Marge Bot <marge-bot src gnome org>]

commit 3776f9df8cd576e75e38affcb67ab295780f84da
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon May 30 21:29:41 2022 +0200

    x11/clutter-backend: Remove unused XSynchronize() call
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2444>

 src/backends/x11/meta-clutter-backend-x11.c | 6 ------
 1 file changed, 6 deletions(-)
---
diff --git a/src/backends/x11/meta-clutter-backend-x11.c b/src/backends/x11/meta-clutter-backend-x11.c
index 9ee2be164a..345c1424dc 100644
--- a/src/backends/x11/meta-clutter-backend-x11.c
+++ b/src/backends/x11/meta-clutter-backend-x11.c
@@ -78,9 +78,6 @@ static const gchar *atom_names[] = {
 /* various flags corresponding to pre init setup calls */
 static gboolean clutter_enable_stereo = FALSE;
 
-/* options */
-static gboolean clutter_synchronise = FALSE;
-
 /* X error trap */
 static int TrappedErrorCode = 0;
 static int (* old_error_handler) (Display *, XErrorEvent *);
@@ -129,9 +126,6 @@ meta_clutter_backend_x11_finish_init (ClutterBackend  *clutter_backend,
                                        cogl_xlib_filter,
                                        clutter_backend);
 
-  if (clutter_synchronise)
-    XSynchronize (clutter_backend_x11->xdisplay, True);
-
   XInternAtoms (clutter_backend_x11->xdisplay,
                 (char **) atom_names, N_ATOM_NAMES,
                 False, atoms);