No, he wasn’t cooling his shooting hand, as he soaked it in an ice bucket late Wednesday night in the locker room at Barclays Center, not after a 2-of-7 night from the field. Instead, it actually was part of Duncan Robinson’s attempt to warm back to the game, after six weeks and 20 games out of the Miami Heat mix. That, if not the final score in the 116-105 loss to the Brooklyn Nets, was a heartening aspect of the Heat’s final game before their eight-day All-Star break. Out since Jan.