FORCE FAST CHARGE: Delete useless FAKE AC hack. it's brake ROM LED.

This has no effect on battery charge. it's just say AC and not USB
But brake charge LED after unplug, it's still turned ON.
and charge mode is not disabled, so wakelock is held, user loose
power, as CPU dont sleep.

Time for this HACK to be cleaned. it's was OFF by default.
but users used it, and posted nags. purge is the best option here.