UI/UX: Revert "Status bar activity indicators for mobile data and wifi"

* I dunno why this has been pushed. Is against our guidlines and this case
  has been discussed at the beginning of kitkat release.

* Also as reported here, it is intentional and we vetoed positive Google's
  decision as we usually do. Since this sauce builds official devices too, revert.
  http://www.androidpolice.com/2013/11/18/a-google-engineer-explains-why-kitkat-has-white-status-bar-icons-and-only-shows-connectivity-in-quick-settings/

This reverts commit b4415037aee233300792dadd62cf96329b283732.
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Merge remote-tracking branch 'upstream/kitkat' into kitkat