Attestation signing - how to delete products/submissions

I did a lot of driver attestation signing tests via MS Partner Center web ui and Hardware dashboard API. Now I would like to clean up these test submission but cannot find the possibility to delete it via web ui or Hardware dashboard API.
Is there any possibility to delete created products/submissions from the MS partner center?

(Moving t a reasonable category)

It is not possible. Thanks to just a touch of OCD, I have had the same desire, even though there is absolutely no legitimate reason for doing so.