Wonder if you have a link to this. I've tried researching it before, and all I could find was internal discussions of the intention to remove the tariff, no codification into legislation.
[0] https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=uris...
[1] https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELE...
[2] https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%...