clearHeader( name )

import { Httpx } from 'https://jslib.k6.io/httpx/0.0.1/index.js';
let session = new Httpx({headers: {'Authorization': 'token1'}});
session.clearHeader('Authorization'); // removes header set in the constructor
export default function () {
  session.get('https://test-api.k6.io/public/crocodiles/1/'); 
}