From the mailinglist:
http://www.archlinux.org/pipermail/arch-releng/2009-April/000474.html

Just to get the ball rolling.

#!/bin/bash
# Proof of Concept

# ToDo:
# Work out best place to add into the aif code
# Sanity Checks?

var="coreutils vi vsftpd kernel26 kernel26-firmware gcc gcc-libs file
vi pam man-pages jfsutils perl iptables"

remove="vi man-pages jfsutils iptables"

result=$var

for each_name in $remove; do
result=$(echo ${result//$each_name/})
done

echo $var

echo $remove

echo $result

# End of File

I'd like to work with Dieter to make this ready for inclusion into AIF.