contrib: dracut: parse-zfs: drop initqueue-finished for i/f

The switch was released in dracut 009 in March 2011,
we can safely get rid of the compatibility hook

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13291

contrib/dracut/90zfs/parse-zfs.sh.in

@@ -59,8 +59,5 @@ esac
 if [ "${wait_for_zfs}" -eq 1 ]; then
 	ln -s /dev/null /dev/root 2>/dev/null
 	initqueuedir="${hookdir}/initqueue/finished"
-	test -d "${initqueuedir}" || {
-		initqueuedir="${hookdir}/initqueue-finished"
-	}
 	echo '[ -e /dev/zfs ]' > "${initqueuedir}/zfs.sh"
 fi