I don't think you'd have to delete it. That's between you and the creators of RPGMaker. It would only be a problem if they sent a takedown request.
I do not think they could send a takedown request. But they might press charges and demand contact information about the perpetrator. And this might end with termination of the account anyways, as I would imagine itch does not support games that were made by criminal methods and license violations.
So no charges or takedown would be needed, only a report of someone pointing those violations out to itch ;-)
But imagine a Unity game where the developer does not pay the fees. Do such games get pulled? Could they be pulled? On what grounds?