If you want to uninstall the address book consider the following steps:
Switch to the directory you created for the address book, in Guided package installation it was suggested to call it
$ cd addressbook
Stop the address book using:
$ bin/svctl stop all $ bin/svctl shutdown
Remove the created cronjobs via:
$ crontab -e
Delete the whole installation directory.
Maybe remove the configuration made for the address book from your frontend server (Apache, ngnix, …).