If you remove all religion, you don't have 10 commandments, but 6.
The first 4 commandments for example are all about God totally irrelevant for any atheist.
As for the rest, well it's simple common sense - just don't be an arse to people.
Would you go on raping women and children simply because it's not written in the 10 commandments? That could have made a much better commandment no 1 as far as I'm concerned.
Personally, I think anyone can figure that out by themselves. If not, and if they need commandments provided by a divinity to tell them that, they are in a very bad position to give advices to anyone.