MIAMI GARDENS, Fla. — The Dolphins had their shot at their first AFC East title since 2008, a first-round home playoff game with a prime-time stage to get over the hump of a division rival that has long stood in their way. But a 21-14 home loss to the Buffalo Bills on Sunday night capped a disappointing end to the regular season and a drop from the AFC’s No. 1 seed to a wild-card team in the final month of the season. Instead of hosting a first-round playoff game, Miami will travel to Kansas City for a first-round matchup with the defending Super Bowl champs and No. 3 seed Chiefs. Kickoff is s…