Disable kick vote isn't very usefull. If it's a public server someone will eventually need to kick some player, and if it's a private server.. well, i don't think players would use vote kick.
I would suggest that rather a Allow_Map_Vote flag, it had a Map_Vote_Time, to set the minimun time you have to wait to be able to vote. If you set it to -1 it would just be disallowed.
Anyhow, i can't think of this being actually usefull.
Why do you suggest this? Do you need it for making some script in your server?