Homebrew Homebrew to remove Wii U account?

[elmerohueso]

I recently set the accounts on my Wii U to not remember their passwords. Unfortunately, one of the accounts was somehow linked to a Nintendo ID that no longer exists, so I have no way to log in as them. And since I can't log in as that user, I don't see a way to delete that account. Is there some homebrew that would allow me to manipulate the accounts on the Wii U to either let me in to that account (somehow unlinking it from the Nintendo ID) or to at least delete that account? I don't want to reset and lose the saves on the other accounts. I have Haxchi and HBC on my Wii U.