By Jelani Scott The seven-time All-Star has one year remaining on his contract. Despite ending up on the wrong side of a first-round sweep, Kyrie Irving maintained his belief in the Nets organization immediately following Monday’s Game 4 loss to the Celtics. The star point guard told reporters he intends to stay with Brooklyn long-term shortly after the team’s season-ending defeat at Barclays Center. Irving, 30, has one year left on his contract, and is eligible for a five-year, max extension this summer. “In terms of my extension, man, I don’t really plan on going anywhere,” he said after Gam…