Revert "Active display: turn off display if device gets pocketed again"

This reverts commit f1da2e4e70b6e9579d65177b0c4d5d1a56ef18bb.

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java

Change-Id: I2067d8341945a02638d424da26cd9fe969e28bf2
Revert "Active display: turn off proximity sensor if not needed"

This reverts commit 9932f65a84c27e9d9963c9c044b8be2327e5f174.