Mobile betting app Spogo, which let bar patrons make quick bets for a chance to win discounts, is winding down the service after the last Bruins-Canadiens game in the current series, according to an email from the founders. Scott Kirsner previously profiled the betting company, which had raised a small seed round and had a few other companies tackling similar tools. What made Spogo different from other mobile betting app was a model that focused on bar-side bets with real, edible (or drinkable) winnings. Kirsner wrote: Spogo’s iPhone app serves up a string of real-time questions about the NFL game…