Revert "Navnavigation bar dpi"

This reverts commit b01983b5d55a41af7d80368e32fc571819577857.
Revert "fix 4.4 build errors"

This reverts commit c62286acf67a7534f3da243a13b5d56ad05b0a26.
revert nav bar
new slim based nav bar
Settings: statusbar reflect am/pm based on the global user settings 12h/24h format (2/2)

for statusbar.

As well fetch the correct color from systemUI

Change-Id: I27de699ff61c0c7b67aa9a8b8b44cc858dbb83e7
Settings: fetch navbar color from systemUI

for better theme support on our new theme engine

Change-Id: I15ef4529578ed6260042c14c3c330bd2153ca561