Fix the layout of the network speed indicatior

Conflicts:
	packages/SystemUI/res/layout/status_bar.xml
Revert "Add missing network indicator items"

This reverts commit c4393b91efa02b69f41b100c01eafb982e03134c.
[1/2] TrafficMeter: added option for auto-hiding on inactivity

Together with inactivity threshold

Thanks to @C3C0 for the code

Conflicts:
	core/java/android/provider/Settings.java

Conflicts:
	core/java/android/provider/Settings.java
TrafficMeter: fix auto hiding when Bytes is set as the unit