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.

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

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