CHAPEL HILL, N.C. (AP) — North Carolina had just completed its first-ever 18-0 season at its longtime home , and Seth Trimble wrapped up his on-court senior night speech by pointing to a simmering debate that will linger into the offseason. “I really, really hope to see the Dean Smith Center here for a long, long time,” he said after Tuesday’s win against Clemson, drawing a loud roar. The 17th-ranked Tar Heels’ storied program has jammed four decades of unforgettable wins, big names and loyal