It was never 'taken out' because it was never in the game in the first place. Remember, this is a totally new game, not an improved version of CMBO/CMBB/CMAK.
There was a longish thread about this very subject. IIRC the feature is somewhere in Battlefront's 'to do' list, but not on top of it, because they feel the online gamers make only a small proportion of the CM:BN customers and therefore other features are more important.