Evict CE keys on request or when a user is removed.

A work around for a kernel bug is needed to avoid the phone locking up
and turning into a hand warmer.

Test: com.android.cts.devicepolicy.ManagedProfileTest#testLockNowWithKeyEviction*
Bug: 31000719
Change-Id: Ia2121b3e3c22b10351296fa998892a91e601bb2c
1 file changed