Delete: Accelerometer

An accelerometer is a piece of technology used for motion controls. The concept page seems to be geared specifically toward games like Guitar Hero, but such devices are commonplace (Wii Remotes, iPads, etc.). The concept should be deleted because it's really nothing more than a bizarrely specific motion control concept.

It'd be nice to have a accelerometer page that explained the technology behind it, but considering the state of that one I think it can be safely removed.

EDIT: It's not a concept, either.

@Hailinel: Done.