By Alek Arend Saturday night’s Duke vs. North Carolina rivalry game became a little too much about Coach K’s last game at Cameron Indoor and not enough about basketball. The unranked Tar Heels stunned the No. 4 Blue Devils 94-81 to spoil Mike Krzyzewski’s special night. “Duke just lost on Coach K Night. Seriously,” tweeted CBB insider Jeff Goodman. “How you lose coach K last game lol,” said NBA forward Kyle Kuzma. “ALL OF THEIR ALUMNI SITTING COURTSIDE TO WATCH IT HAPPEN WITH THEIR OWN EYES OH HOW DELICIOUS,” said Rob Perez. “NORTH CAROLINA STUNS DUKE IN COACH K’S FINAL HOME GAME,” tweeted Ble…