It's called a dead law, many things are legal/illegal but never used/enforced againts simply because there is/isn't a social stigma related to them anymore. Think back to the idiotic law that forbade anal sex in Washington, no matter what kind of sexual partners were to perform it. Or the law againts licking lollipops.Nope it's legal.
They were made at some point but are no longer used, it's just that the State doesn't feel like changing them because it's just a waste of time and paper to officially remove them.
EDIT: Silly irregular verbs are silly, fix'd.