Revert "Add "Unlocked device required" parameter to keys"

This reverts commit d98e6865503ee2c63c4e73796f7ad8b6cb87c450.

Reason for revert: Build breakages on elfin, gce_x86_phone.

Bug: 72679761
Bug: 67752510
Change-Id: Iaa6b154f1ec4a2095ed5704d7670f8cae0d8c2f7
5 files changed