refactor: remove decode_html_utf8 (#6983)
refactor: remove decode_html_utf8 (#6983)

This function gets defined and exported, however, it doesn't get called.
openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server