Revert "[1/2] Feature: custom notification drawer background"

This reverts commit d94d0516dd6bb89311e5592c23f05d801b7ebe52.

Change-Id: I62da1f0d580c5ec92c2f3c74fbb1d41c3cc520c1
Frameworks: notification drawer background (1/2)

so after keyguard is mostly done let us start notification drawer
and QS. First one custom background.....either color or picture
with custom alpha and ability to set a landscape picture seperatly
(landscape phone only)

Compared to the 4.3 included version completly recoded and better
integrated. No idea what I thought 1 year ago on the old implementation

cheeers

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

Change-Id: Id7d0f718acd05d34fab57bb250c29ed944bdcd58