login: RemoveArcData() removes new directory location

Revised Chrome-side change will send cryptohome ID with
RemoveArcData D-Bus method call.
https://codereview.chromium.org/1966133002/

BUG=b:26700652
TEST=cros_run_unit_tests --board $BOARD --packages chromeos-login

Change-Id: Iae56f3773c8399c15607012fec4346cf37d50f6a
Reviewed-on: https://chromium-review.googlesource.com/352382
Commit-Ready: Shuhei Takahashi <nya@chromium.org>
Tested-by: Shuhei Takahashi <nya@chromium.org>
Reviewed-by: Shuhei Takahashi <nya@google.com>
5 files changed