Revert "Don't prompt at boot if we already did that when decrypting"

This reverts commit 493e3e7e6523fd94cc1acae3e45935a1227d58c3.

Should fixes

Bug: 13611885
Bug: 13656830
Change-Id: I117c988bb6679f44f8add4fcc18f45cb8238dfb4
6 files changed