Revert "Allow translucent navigation bar in landscape mode."

This reverts commit 5ed9711be677d73bae34469864822eeb28dc0d98.
Implement Dynamic System Bars [1/2]

This commit implements DSB. Simple as that.

All the changes:
- frameworks/base (I3bc7102b2139fd1fa3de22aac096bd2a75bde878)
- packages/apps/Settings (Id2b105dfb3faf3cad74d0fa0dc33d01f6b71a853)

Change-Id: I3bc7102b2139fd1fa3de22aac096bd2a75bde878
Signed-off-by: anerikg <anerikgames@gmail.com>

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarTransitions.java