Commission Implementing Regulation (EU) 2016/871 of 1 June 2016 concerning the non-renewal of approval of the active substance amitrole, 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 Commission Implementing Regulation (EU) No 540/2011 (Text with EEA relevance)