message: Remove old versions from readme
diff: @@ -66,12 +66,6 @@ render(<App />, document.querySelector('#app'));
  Check out the [documentation website](https://material-ui-pickers.dev/)
  -Old versions documentation:
  -
  -| Version | Documentation url |
  -| ------- | ----------------------------------------------------- |
  -| v2 | https://material-ui-pickers-v2.dmtr-kovalenko.now.sh/ |
  -
  ### Recently updated?
  Changelog available [here](https://github.com/mui-org/material-ui-pickers/releases)
  