Again, related to [12964](https://github.com/zeit/next.js/issues/12964)

After checking all the other examples and the ongoing pull requests, I believe that with this PR being merged, all the examples should be free of redundant react imports.
Let me know if you want me to edit anything that you don't like.

Regards

with-typescript
with-atstroturf
with-atlaskit
with-styletron
with-styled-components-rtl
with-stylesheet
with-stomp
with-stitches-styled
with-stitches
with-slate
with-sentry-simple
with-sentry
with-segment-analytics
with-rematch
with-relay-modern
with-reflux
with-redux-wrapper
with-react-relay-network
with-react-native
with-react-multi-carousel
with-react-jss
with-react-helmet
with-react-ga
with-quill-js
with-prefetching
with-google-analytics-amp
with-google-analytics
with-framer-motion
with-flow
with-firebase-hosting
with-firebase-cloud-messaging
with-firebase-authentication
with-expo
with-dynamic-app-layout
with-draft-js
with-cxs
with-cerebral
with-ant-design-mobile
with-algolia-react-instantsearch
using-preact
progressive-render