With the game in doubt Monday night, the 49ers reverted to some good, old-fashioned football – and then a dynamic defensive play -- to put away a victory and say goodbye to a good, old-fashioned football stadium.The 49ers defeated the Atlanta Falcons 34-24 in the final regular-season NFL game at Candlestick Park to clinch their third straight trip to the playoffs. First, the Niners took command of the game in the fourth quarter with a punishing drive that didn't feature a single pass.After the Falcons scored a touchdown to come within three points of the 49ers, 20-17, San Francisco responded by driving 76 yards in six plays to score on Frank Gore's 1-yard run.The drive began with a 17-yard run by Gore, followed by a 9-yard Gore run. Gore then picked up 3 more. On the next play, Kendall Hunter broke off right tackle for a 45-yard burst down to the Atlanta 2. Two runs later, Gore was in for the score with 5:07 remaining in the game. Six plays, six runs, six points – and an extra point.As Cam Inman of the Bay Area News Group tweeted: "Kendall Hunter just ended this game: 45-yard run to the 2."As it turned out, the proclamation of victory was a bit premature. The Falcons...