How to make Macintosh forget Cisco AnyConnect VPN Mobility Client

Cisco AnyConnect VPN client sometimes breaks on Migration Assistant. If you try to reinstall, it will say that it is already installed even if you ran the uninstaller.

1. Open Terminal
2. type su eid-admin and press Enter
3. authenticate with eid-admin password
4. type sudo pkgutil --forget com.cisco.pkg.anyconnect.vpn
5. enter password