By Andrew Gould North Carolina is going to the NCAA men’s championship game after defeating Duke on Saturday night. The 81-77 victory not only gave the No. 8 seed a spot in the national game, but ended Mike Krzyzewski’s legendary career. The Tar Heels, who already spoiled Coach K’s final game at Cameron Indoor Stadium, also eliminated the men’s all-time winningest head coach during his final season. After their latest victory, the team’s official Twitter account gave Krzyzewski a simple sendoff. Duke’s Twitter page also offered a succinct message of its own. While it wasn’t the outcome Coach K…