Revert "nav bar stuffz"

This reverts commit f57939eb51d2d0fc40ff7ae854d7495d80cdcc96.

Conflicts:

	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back_ime_land.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back_side.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_menu_big.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_menu_big_land.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_recent_side.png