Remove HardwareAuthToken support from vold::Keymaster

HardwareAuthTokens are no longer used by vold since Android P. So remove
the auth token parameter from vold. This patch doesn't remove the token
from IVold.aidl, and the methods in VoldNativeService.cpp return an
error if a non-empty auth token is passed to them.

Bug: 181910578
Test: cuttlefish and bramble boot with patch
Change-Id: I1a9f54e10f9efdda9973906afd0a5de5a699ada5
7 files changed