Commission Implementing Regulation (EU) 2016/139 of 2 February 2016 renewing the approval of the active substance metsulfuron-methyl, as a candidate for substitution, in accordance with Regulation (EC) No 1107/2009 of the European Parliament and of the Council concerning the placing of plant protection products on the market, and amending the Annex to Implementing Regulation (EU) No 540/2011 (Text with EEA relevance)