Ash here from the Shopify team. Thank you for posting your request in the Shopify Community Forums!
I'm happy to help out with deleting your unneeded Partner account. In order to proceed with this request, I'll need to verify you on the accounts and loop in our Partner Support. I can absolutely help get the ball rolling on this! I've sent an email to the email address associated with your Shopify Community account. Please reply back to that email directly, and once I receive your reply we can proceed from there.
Looking forward to hearing back and continuing to support you!
My pleasure. Thank you for getting back to me via email. I've replied to you back in there, and at this point we can gather any further information we need through that ticket. I'm glad I've been able to help out!