They want to put the green in Greenpoint. A historic, landmarked bank in the trendy Brooklyn neighborhood could be turned into a pot shop run by an outfit that already runs an unlicensed operation in nearby Bushwick — leaving locals fuming. A notice warning neighbors that the 420-friendly business might be moving in was seen Friday plastered on the giant, granite edifice of the Greenpoint Savings Bank, which has sat empty for four years. “I’m not against the pot one way or the other, it just...