Revert "On device lockdown, always show the keyguard" This reverts commit 100ae42365d7fc8ba7d241e8c9a7ef6aa0cdb961. Reason for revert: b/300463732 regression Bug: 300463732 Bug: 218495634 (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:996896e672f28aa96a3d8158192de3cd4a105bc3) Merged-In: Ida8f2ab5e4ac79b38c21ba7bacfe9c374c9cc600 Change-Id: Ida8f2ab5e4ac79b38c21ba7bacfe9c374c9cc600