SYDNEY (Reuters) - Asian shares drifted off on Thursday as uncertainty over the outlook for both U.S. interest rates and the chance of global fiscal stimulus sucked the life out of markets.Not helping was a fresh slide in the Chinese yuan to an 11-year low , which dealers said prompted defensive buying from state-owned banks.In early European trades, the pan-region Euro Stoxx 50 futures slipped 0.2% as did London's FTSE futures . Germany's DAX futures eased 0.3% while France's CAC 40 futures ..