By Andrew Holleran Patrick Mahomes was as angry as we’ve ever seen him at the end of the Chiefs vs. Bills game on Sunday afternoon. Buffalo topped Kansas City, 20-17, at Arrowhead Stadium on Sunday. The Bills held off the Chiefs late, stopping Mahomes and Co. on a fourth down play. Mahomes erupted on the sideline following the game. He had to be restrained by his coaches and teammates. Mahomes appeared to be going after the referees. Why was Mahomes so mad? Well, the officiating crew appeared to miss a blatant offsides penalty by Bills pass rusher Von Miller. The Chiefs didn’t help themselves,…