Previously (Changeset 138358287), I duplicated the Storm Peak Challenge Road in order to represent that this way has a different name in the winter as a ski piste. 

I've now learned that the more concise way to do this is to use the piste:name tag. 

So this change deletes the duplicated way, moves the piste tags back to this way, and adds the piste:name tag to represent the winter name. 