[PATCH:libX11] Remove unused definition of XCONN_CHECK_FREQ

[Mark Kettenis]

> From: Alan Coopersmith <alan.coopersmith at oracle.com>
> Date: Sun, 29 Nov 2015 09:48:09 -0800
> 
> 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 at oracle.com>

Reviewed-by: Mark Kettenis <kettenis at openbsd.org>

> ---
>  include/X11/Xlibint.h |    8 --------
>  1 file changed, 8 deletions(-)