Well, it's a dex. So like the steem blockchain it can be used anywhere in teh world, but like the steem blockchain you can have different front ends for this stuff. So, no you can't remove it from the blockchain, but you can run the open source code to have your own dex that's only accessible by whatever conditions you put there.
While this first go round is only starting with public coins maybe we can add functionality down the road for more private ones too.