remove transform runtime

[hartzis]

follow up to #28 , paired with dozoisch/react-google-recaptcha#87

• removes transform-runtime to remove all polyfills

I created an example repo here test-build-webpack-babel-transform-runtime that runs a webpack bundle on a react-google-recaptcha component that includes react-async-script.

Simple entry point:

import react from 'react';
import ReCAPTCHA from 'react-google-recaptcha';

function Test() {
  return (<ReCAPTCHA />)
}

I ran a reports with and without transform-runtime:

• with transform-runtime | report-transform-runtime.html
  • has ~ 17kb parsed / 6kb gzip worth of babel-runtime/core-js polyfills
• without transform-runtime | report-no-transform-runtime
  • has some included helpers at the top of each ~1kb parsed / 0.3kb gzip added to each package

Screenshots

With:

Without: