Gaming cocks have their combs cut off...it doesn't effect their steriltiy as the winners are become breeding 'studs'. The damage to the comb doesn't hurt the roosters after it heals. (Source: The Chicken Book, authors Smith and Daniel, pub. Little Brown.)
What I have found in researching is that this is an old wive's tale.
What I have found in researching is that this is an old wive's tale.