How do i delete the qmail handlers?

[Linulex]

I know i have to do this in plesk 8.6 to get rid of the qmail handles

rm -f /var/qmail/bin/qmail-local.orig
rm -f /var/qmail/bin/qmail-queue.orig
rm -f /var/qmail/bin/qmail-remote.orig
mv /var/qmail/bin/qmail-local /var/qmail/bin/qmail-local.orig
mv /var/qmail/bin/qmail-queue /var/qmail/bin/qmail-queue.orig
mv /var/qmail/bin/qmail-remote /var/qmail/bin/qmail-remote.orig

But in plesk 9.5.4 there are 2 handles more: info and spool. How do i get rid of those? Is it wise to do that?
I presume spamassassin is still handled by the .qmail file and thats all i need.
greylisting and everything else is handled by assp and i want qmail as fast as possible.

regards
Jan