Is it a another way to delete my own cookbook on the supermarket.chef.io?

I'm just testing knife supermarket share command. After that, I want to unshare it with command knife supermarket unshare, and found out I can't unshare my own cookbook. It say I'm not the maintainer of the cookbook. But as the chef dev member said:

With a Supermarket configured to prevent owners from removing artifacts (the public Supermarket is now configured this way, or use a test Supermarket install)

It's setting that way. Preventing owners from removing artifacts.

I know that delete a cookbook will break a cookbook that has set a dependency on that cookbook. But I'm saying a test cookbook which will impossible to be other's dependency now and ever!

So, is a another way to delete this kind of cookbook on supermarket.chef.io ?