Revert "USB force fast charging"

This reverts commit 91fec97ec4bd9cd9ee8903f82d27bb0195272d57.
fastcharge: initial adaptation for Nexus 4

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	arch/arm/mach-msm/Kconfig

Change-Id: I3b750d390bbfe1913a3c06511935fad9c1d9b616