How do I delete AI Clean on iPhone?

AI Clean? Is that an app? If so delete it like you do any other app, or if that doesn't work contact the developer.

Remove or delete apps from iPhone - Apple Support (CA)

As you can see from the responses so far we have no idea what you are talking about. You need to explain in detail what you are asking. “AI Clean” means nothing unless you explain what it is.

All you got to do is delete the app but first if you have an account with the app delete your information first then delete the app

Do you mean the cleanup tool in Photos on your iPhone? If you are running Apple Intelligence, the features are not pick and choose. But you are under no obligation to use the cleanup tool if you don't want to use it.

If this isn't what you meant, perhaps provide more information.