Disable unlocked screen off when the panel is expanded.

This is a partial revert of ag/33149508, but retains that CL's change that allows the screen off animation to run when keyguard is rotated.

This caused an issue when the screen off animation was canceled when the following conditions are met:
- Shade is open
- Screen off animation is cancelled partway through
- Device is not locked on the power button press ('power button locks instantly is disabled', smart unlock keeps device unlocked, etc.)

Doing so returned to GONE but with the notification scrim stuck showing over the unlocked content. Additionally, the first time you pull down the shade, it stutters the entire time until you finish expanding or collapsing it.

I spent two days trying to figure out why it does that (after Rahul spent a week on it) and have not been successful. This is the safest fix since it is a partial revert.

Bug: 414874982
Test: disable 'power button locks instantly', pull down shade, cancel screen off
Flag: EXEMPT bugfix/rollback
Change-Id: Ia33553366aa2dc43302fe24bc612a3de3ba81046