I had the same problem. i don't think there is something you can do. You can wait untill the game has finished. then the messages will stop.
Help with Unsubscribing

I had the same problem just today, if you join the group again you should be able to enter the match and untick the box, then leave.

On the box where you can leave messages, click the checkmark signifying that you receive comments. That should stop it.
G

Unfortunately you can't get to the box, G-Money7. Since I've left the team I can't return, and the box isn't available in the 'public comments' section (which is the only one I can view).

The only other thing I could think of is to rejoin the team, rejoin the vote chess (I'm not sure if you can or not, sorry), uncheck the box, and leave the team.
When it comes up in your comments, can you go to the link? That should take you to the team comments as well.

Unfortunately, it's a private team, so instead of jumping through the hoops to get off the list I'll just ignore it until it goes away.
I joined a vote-ches game with a team a while ago. As usual, I checked the 'keep me updated' box to look at now moves/etc. from the team.
I've since left the team.
The problem is that I still get messages from the vote chess game. Is there anyway I could remove myself from the message list?