PARIS (Reuters) – Danone delivered stronger-than-expected sales growth in the last quarter of 2021 amid a challenging environment marked by mounting inflation, and its new chief executive said much remained to be done to turn the company around. Antoine de Saint-Affrique, who took over as CEO in September, said investors would have to wait until a March 8 Capital Market day to get clues on his strategy and guidance for 2022 and for the mid-term. Danone, which is the world’s largest yoghurt maker, reported 2021 like-for-like sales rose 3.4%, slightly above analysts’ estimates in a company-compi…