Revert "BatteryService: add option to disable charging indicatior led"

This reverts commit 74528939b3fd0a2f1de907768c6f80d0973435a0.

Conflicts:

	core/java/android/provider/Settings.java
[2/2] Add support for custom LED colors notification

Originally from dvtonder (CyanogenMod)

Change-Id: Iab519a757220c444f166b8a05246c7ca71b897d8
fb: make battery light multiuser configurable

Change-Id: Ife6e72fef8da08d287b0790b0dda0fa3bb50c815