If you don't want to look at it, you can always change your My Games filter to "Games where I am not eliminated"
Or you can mail the offending player and ask them to play, or mail whoever is in the game and ask them to boot him. Even if the game has no auto-boot, he'll eventually be booted by the abandoned games system, so no games go on forever. See
http://wiki.warlight.net/index.php/Abandoned_games