I don't know how it works out there, but are there things that you can still do with a law degree that you could see yourself doing? I fully know the feeling, it only took a month or two of my undergrad law to show me that I was right about not wanting to be a lawyer, but fortunately an undergraduate degree is useful regardless of subject.
You would not be quitting. You'd be redirecting. Don't haemorrage money, time and effort on something that won't achieve what you want. That's silly!