Get rid of React Warning messages about jonrh.is

[jonrh]

I received these warning messages in while starting a new React Native project. So it seems to affect more projects than just GatsbyJS.

[jonrh]

After digging a bit further it seems the errors are originating from react-responsive-grid, a repository that seems to have gone stale by now. This seems to be the offending file. The library seems to be written in CoffeeScript.

I think it would probably be best to get rid of this dependency and find something else more actively maintained.The only place I'm using it is in layouts/index.js:

<Container
	style={{
		maxWidth: rhythm(24),
		padding: `${rhythm(1.5)} ${rhythm(3 / 4)}`,
	}}
>
	{header}
	{children()}
</Container>

[jonrh]

These warnings are no longer being generated. So it must have been something else that fixed it ¯_(ツ)_/¯