FIFA president Gianni Infantino downplayed Qatar’s last minute ban on the sale of beer at World Cup stadiums Saturday as nothing more than a brief inconvenience to spectators. “If this is the biggest problem we have, I’ll sign that (agreement),” Infantino said Saturday, a day after the conservative Muslim emirate did an about-face on the deal it had made to secure the soccer tournament. Infantino blamed “crowd flows” in Doha for the decision, though it appeared to be a ruling by Qatar’s autocratic government to placate its conservative Wahhabi citizens who already have been angered by some eve…