Don't remove extra home directories indiscriminately

Created by: DanLipsitt

Deleting code that removes home directories indiscriminately. This was removing a service's home directory created by an installed deb, which was a hard bug to track down.

Instead, maybe this can happen somewhere like install_node_pkgs() in the chroot_script, where there will be more info about which directory needs to be removed. We don't use NPM so I don't know what the problem directory looks like.