Revert^2 "Detect factory reset and deleteAllKeys"

Revert submission 15536724-revert-15521094-vold-deleteAllKeys-GDJSMLXRVZ

Reason for revert: Underlying KM problem fixed
Reverted Changes:
I8e2621bef:Revert "Detect factory reset and deleteAllKeys"
I546b980bb:Revert "Add deleteAllKeys to IKeystoreMaintenance"...
I1ed68dd9e:Revert "Allow vold to deleteAllKeys in Keystore"

Bug: 187105270
Test: booted Cuttlefish twice
Merged-In: 1e6a5f51065173224700d551693867bd33c7e5b9
Change-Id: Id641444b4ebba951aa8c5474ed60844cfaae1e20
3 files changed