Remove account from WrappedApplicationKey

Recovery controller will no longer be aware of accounts. It is up to
the recovery agent to decide where to upload keys, and if so what
accounts to use.

Bug: 73811828
Test: runtest frameworks-core -p android.security.keystore.recovery
Change-Id: I929076d948f4d36ba88b68cca08058a5cdde0107
4 files changed