I was playing around with using Containers for Azure functions and when I try and clean up, i've been left with resource groups that Azure created for me (this was all done via point & click in the portal - not Bicep or a Blueprint)
When I try and delete them, I get a message that my account has permission, but there is a Deny Assignment on the resource group - All principals are denied, which is an Azure assignment that it won't let me remove (says deny assignments are read-only)
Other tickets mention deleting the app that created the RG to remove the assignment, but the only Enterprise Application I can find that would be relevant tells me that I can't delete it as it is a "Microsoft first party application"
How do I go about deleting these resource groups?