Revert^2 "Activate KeyMint"

8f0cd15159b5a3f7d0ddb5cc78d2a364d1982244

Bug: 177729159
Test: VtsAidlKeyMintTargetTest & CtsKeystoreTestCases
Change-Id: I1f6f4c27562104ee650cc085e977ebd4fecdfdf2
4 files changed