Remove the `cacheDirectory` option from babel config
Remove the `cacheDirectory` option from babel config

In storyshots, we are running babel directly, not through webpack, so we can't use this option, which applies to `babel-loader`. See https://github.com/storybooks/storybook/blob/master/app/react/src/server/config/babel.js#L15

https://github.com/storybooks/storybook/issues/1254
rhalff/storybook,kadirahq/react-storybook,jribeiro/storybook,storybooks/storybook,rhalff/storybook,storybooks/react-storybook,storybooks/storybook,storybooks/react-storybook,jribeiro/storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/react-storybook,rhalff/storybook,rhalff/storybook,storybooks/react-storybook,rhalff/storybook,storybooks/storybook,storybooks/storybook,storybooks/storybook,storybooks/storybook,rhalff/storybook,jribeiro/storybook,jribeiro/storybook