Remove HardwareAuthToken support from FakeStorageManager

There is no longer any need for FakeStorageManager to keep track of
hardware auth tokens, since they aren't used for real anymore.

Test: atest com.android.server.locksettings
Bug: 184723544
Change-Id: Ida3a989ecea974fe79568e381cf0e6ff3fe1f1eb
(cherry picked from commit 2e10d6394a32c5ebaa114569932ab8a255636673)
Merged-In: Ida3a989ecea974fe79568e381cf0e6ff3fe1f1eb
2 files changed