Sometimes we may require to remove APF from the server. Here is a guide which shows how to remove APF completely from the server.
Stop the firewall first
service apf stop
/bin/rm -rfv /etc/apf
Remove the cron for APF
/bin/rm -fv /etc/cron.daily/fw
/bin/rm -fv /etc/init.d/apf
lastly disable at startup
chkconfig apf off
This should remove APF completely from the server as we removed the APF daemon, cron and files.