By Eric Onstad LONDON (Reuters) – The London Metal Exchange (LME) has lost ED&F Man Capital Markets as a ring dealing member after most of its floor team resigned because they expect takeover talks with broker Marex to be successful, a source close to the situation said on Friday. The two brokers said earlier this month they had entered into exclusive talks for the potential purchase of ED&F Man Capital Markets (MCM) by Marex. MCM is the financial services division of ED&F Man Group. Both brokers have special teams of traders that operate in the LME ring, the last open-outcry trading floor in …