The only use of XCONN_CHECK_FREQ was removed in commit 15e5eaf62897b3179
when we dropped the old Xlib connection handling in favor of xcb's.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Backported-to-NX-by: Ulrich Sibiller <uli42@gmx.de>