Dude, just move on, your sites won't pass the RR even if you remove the trade plugin. Your problem was the duplicate content and keyword stuffing.
Anyway, the trade plugin is a bad experience for the users too.
Look at this guy
https://www.google.com/?q=site:theme...:themetart.com, he won't pass the RR too due the duplicate content issue. Just focus on building some sites for the users and you will rank. The auto wordpress and trade shit will be gone soon.