Remove HardwareAuthToken parameter from clearUserKeyAuth

Due to the migration to synthetic passwords, the 'token' parameter to
clearUserKeyAuth() is no longer needed.  Remove it.

Test: atest com.android.server.locksettings
Bug: 184723544
Change-Id: I739b519b0e91293acbf018020891d68b3090c175
(cherry picked from commit 2a8ab4778297852738f94ea5dd3f1e6ff9ab9416)
Merged-In: I739b519b0e91293acbf018020891d68b3090c175
4 files changed