Revert "On device lockdown, always show the keyguard"

This reverts commit 100ae42365d7fc8ba7d241e8c9a7ef6aa0cdb961.

Reason for revert: b/300463732 regression
Bug: 300463732
Bug: 218495634

Change-Id: Ida8f2ab5e4ac79b38c21ba7bacfe9c374c9cc600
Merged-In: I314e5615b798487d9a965eaa0937905b65aa85fc
1 file changed