(Reuters filepix by Brendan McDermid) SHENZHEN, China (Jan 7): US video gaming platform Roblox Corp has taken down its Chinese app that fronted its expansion efforts into the country, telling Reuters it was part of “a number of important transitory actions” as it builds its next version. The LuoBuLesi app, which Roblox launched in July in partnership with an affiliate of Tencent Holdings, was shut down on Dec 8, disappearing from mainland app stores. The app now shows users a message thanking them for using the test version when they log on. The app’s importance to Roblox’s expansion in China...