keystore2: make UnlockedDeviceRequired fix unconditional

Make the fix unconditional and remove all superseded code.

Bug: 299298338
Test: atest -p --include-subdirs system/security/keystore2
Test: atest CtsKeystoreTestCases
Test: atest com.android.server.locksettings
Test: atest TrustManagerServiceTest
Test: atest TrustTests
Change-Id: I99ae3b3ab9fd2dff54793ba455110612d2bd0345
6 files changed