How to delete the config file

Hi.

I have made a mistake. I have changed the controller keys. And I did change the "Esc" key to unbound. So now can´t I get in the menu.

I have tried to reinstall the game to get back to normal config. I did also find the config file under game documents But it will not get back to normal config. The game can remember the config no matter what.

Anyone knows how to fix it? The only only other choice I have, is to format the whole internal HD. And that will I rather avoid.

Kristian