As second-quarter bank earnings season gets under way this week, the big question isn’t whether firms will miss or beat expectations. Rather, after the UK’s vote to leave the European Union, it is whether bank stocks will be dead in the water for another year or two.“I think the second quarter is going to be just fine,” said Credit Suisse analyst Susan Roth Katzke. “The question is…how much does the second quarter matter in terms of where we go from here?”