The 76ers shot themselves out of Game 2 Wednesday night, and it may cost them their series against the Knicks. Philadelphia led 90-89 heading into the fourth quarter of what had been a back-and-forth affair that wound up featuring 25 lead changes. The Sixers were 12 minutes from tying the series at 1-1 and instead walked out of Madison Square Garden down 2-0 after going ice cold late. Entering the fourth, Philadelphia had shot 30-for-56 (53.6%) from the field, including hitting half of its three-point attempts (12-for-24). With Joel Embiid sidelined, the Sixers had leaned on their shooting ability to edge into the lead over New York. That shooting abandoned them late. In the fourth quarter, Philadelphia was 4-for-19 (21.1%) from the field and 1-for-10 from three-point range. Tyrese Maxey, who finished with a team-high 26 points, was 2-for-7 in the fourth, while VJ Edgecombe and Paul George were a combined 0-for-9 on field goals and 0-for-5 from deep.…