CountryDetector no longer requires location permissions.

Country information is already available elsewhere (MNC/MCC), so there's no
point enforcing these permissions.

It wasn't properly enforcing the permissions anyway, since the code path in
question was sometimes executed on a handler thread.

Bug 20927020

Change-Id: Ia090664917f7b694e80dd55934db442633bab1d8
2 files changed