Remove the Root Password MySQL

On a test server I would like to remove the root passwo开发者_如何学编程rd in order to test some security.

I don't want to change the password or set it to blank (which is what every guide online seems to tell you to do) I just want root to not need a password to authenticate.

Wouldn't it make sense to just disable remote logins as root, instead only allow local as root?

The answer, as Kerry suggested in his comment was that it is not possible.