Hi,
I am little confused.
But it really doesn't very important for what domain you have purchased the CleanMart. What important is; in what domain you validated the template (via VM3 Plugin backend settings).. So, if you validate the template in 1 live domain only, you are good to go. If you validate the template in 2 live domains, you may be faced with some investigation from us during our periodic check.. But if you completely uninstalled the template from the 1st domain, you won't have any problem though..
FYI: Development/TEST sites (including localhost) are excluded from the domain validation. You are free to install our template to as many domain as you wish for testing.
Regards.