Remove getStatus from Return<*>.

The status is already exposed via isOk. Recoverable transport errors can
be recovered from via linkToDeath and registering for service
notifications. Debug information is exposed via Return<*>::description.

Bug: 31348667
Test: compiles
Change-Id: Ia776dccfb80c0c5f0975e97cd709d8f25716119b
1 file changed