By Emma Revell Whether it’s the gambling white paper putting advertisers off snooker or plans for a new football regulator, our favourite sports risk being legislated out of existence, says Emma Revell When it comes to my two favourite sports, this week has been a game of two halves. On one hand, I’m a long-suffering Sunderland fan. With yet another defeat at the weekend and play-off hopes long since vanished, I’m just keen for the season to end. On the other hand, for snooker fans like me, all eyes have been on the World Championships in Sheffield – the hallowed ground that is the Crucible Th…