Test that trying to unshare with the owner of a shared calendar fails properly.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13997 e27351fd-9f3e-4f54-a53b-843176b1656c
Trying to unshare with the owner of a shared calendar now fails properly.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13998 e27351fd-9f3e-4f54-a53b-843176b1656c
Trying to unshare with the owner of a shared calendar now fails properly.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13999 e27351fd-9f3e-4f54-a53b-843176b1656c