Revert 2 commits causing pin unlock issues after reboot

Revert "Send out USER_PRESENT broadcast on screen on if lockscreen is disabled."

This reverts commit abd2c3de99f2dcbd0a82f8611f587e548080989d.

Revert "Don't let apps disable the SIM PIN entry screen."

This reverts commit c7b07abc49b287ce10a7cbaf4744fa3c425f2a86.

Change-Id: I34cc483131ba896a06165d03ce9a609585df44fa