KANSAS CITY, Mo. (AP) — The Kansas City Chiefs will welcome the Texans to Arrowhead Stadium on Sunday for the divisional round of the playoffs, a rematch in name only of their Week 6 nail-biter won by Houston on a fourth-quarter touchdown. The Chiefs are so markedly different that their early October game is nearly meaningless. The Chiefs were in the midst of a shaky 6-4 start to the season,…