It looks like this would work:config delete SquidParent
expand-template /etc/squid/squid.conf
service squid restart
You could also config delete SquidParentPort to clean up your config db if you want to, but the template fragment for Squid Parent (/etc/e-smith/templates/etc/squid/squid.conf/10ParentCache) decides not to output anything if 'SquidParent' doesn't exist, so you don't have to...