Facebook has begun phasing out its Credits virtual currency, which users had purchased from the social network to put towards buying everything from FarmVille’s virtual currency to live concerts. Instead users will put real money towards those purchases, so that a U.S. user will pay in dollars, a British user will pay in pounds, etc. Facebook will transition all apps or games that sell virtual goods to local currency by year’s end. “Since we introduced Credits in 2009, most games on Facebook have implemented their own virtual currencies, reducing the need for a platform-...