None Timmy. Yep, you can cuss, steal, lie, cheat, blasphemy...sin all day and all night long without any thought about repentance...oh wait....Hmmm the bible does say in the NT we have to repent. I wonder what we are supposed to repent of?
Maybe SOME THINGS...in the law...are still sins today. I'll venture to guess that if the NT mentions it being wrong (and it was wrong in the OT), then it's still wrong