Clean-up CardDAV tests.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13705 e27351fd-9f3e-4f54-a53b-843176b1656c
No longer used.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13706 e27351fd-9f3e-4f54-a53b-843176b1656c