How to bootstrap a dev environment with Marketplace

I want to install a marketplace product, unlock it, and then start developing further from there.
However, I get banners in Ontology Manager that those objects have been created via Marketplace, which I would like to get rid of (I want to even delete the marketplace installation resource, as this is really a one-off installation).

How can I get rid of those banners ? How can I 'untie" a marketplace installation from the resources it installed ?