Revert "Navigation bar custom height"

This reverts commit e8e281b378dca90aa14e09de2d39e12b2b841204.

Conflicts:
	core/java/android/provider/Settings.java
Revert "Swap volume buttons when the screen is rotated by 90 or 180 degrees"

This reverts commit 498db4cfe4916946965dd98dbe870c021902acf3.
Revert "Audio: Fixed system/call stream volume can't adjust with HS connected."

This reverts commit b0fdf71c2cb3855715f758a21e30c6a4fba14c11.
Revert "StatusBar: Add support to show data and wifi activities."

This reverts commit 7c6b824c4f9333e8938ed5ae1b50068cc8ad6d12.
Revert "Statusbar: Add customized icons for signal cluster view"

This reverts commit baeea85e2e1d0a8e9f8a12367b37b8322165694a.
Test TaskManager