MIAMI — The outcome of the Dolphins’ regular-season finale against the Buffalo Bills determined a pair of extreme postseason paths for Miami. A win would have clinched the first AFC East title for the franchise since 2008 and give the team at least two home playoff games at Hard Rock Stadium. Instead, the Dolphins’ 21-14 home loss places them on the road likely for the duration of a postseason run. The defeat also produced an extreme in the weather conditions for their first-round game. When the Dolphins face the Chiefs at Arrowhead Stadium on Saturday night, it will likely be the coldest game…