Safety, liberty and all that jazz.
Cf. Ben Franklin.
It's a ticking bomb.
It needs to go.
If it hasn't been used, why do we have it?
If it has been used, the fact that we don't know about it speaks volumes.
Leave it on the books, and someone will use it for something. Considering the way it's written, and the Law of Unintended Consequences, I wouldn't hold my breath waiting for it to be something good.
Bad law is bad law.