Delete calendar properly on commanded wipe

* CalendarProvider2 has unusual semantics for its delete operation on
  Calendars; this caused the user's calendar NOT to be deleted when
  the server commanded a wipe of calendar data.  The result was
  duplication of events after the subsequent resync

Bug: 3361000
Change-Id: I672034a7a444eb7ebdea60cd6dc66a31087cc6f7
1 file changed