Revert "Add Navbar Lockscreen Transparency option"

This reverts commit 3c24f5473d4ea0c5bdbf9a98a921a52b6181e3ca.

Conflicts:

	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
Revert "Frameworks: Navigation Bar transparency and color"

This reverts commit 82663a4b949f1f8ce62d37248fc475bcc3dbee3d.

Conflicts:

	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
Revert "Add Lockscreen Transparency option"

This reverts commit 7d43bba853460cd7958d24c06af8a0f11d81d8e4.
Revert "Frameworks: Status Bar transparency and color"

This reverts commit 118b132cc9f5266310f8e0ae93d47d26d8a54413.