unknown oid vfs.zfs.scrub_delay & vfs.zfs.resilver_delay

From: Miroslav Lachman <000.fbsd_at_quip.cz>
Date: Mon, 27 Mar 2023 22:25:37 UTC
We used optimized sysctls for faster scrub and resilver in the past but 
after upgrade of backup machine to 13.1 the mentioned sysctls no longer 
exist.
Is there any replacement for the vfs.zfs.scrub_delay and 
vfs.zfs.resilver_delay setting?

The original setting was

vfs.zfs.scrub_delay=0
#vfs.zfs.top_maxinflight=128  # removed in FreeBSD 12.2
vfs.zfs.resilver_min_time_ms=5000
vfs.zfs.resilver_delay=0

Kind regards
Miroslav Lachman