Removed unused Redirect module from RouteConfig example (#3842)

Author: chentsulin

website/examples/RouteConfig.js

@@ -2,7 +2,6 @@ import React from 'react'
 import Match from 'react-router/Match'
 import Miss from 'react-router/Miss'
 import Link from 'react-router/Link'
-import Redirect from 'react-router/Redirect'
 import Router from 'react-router/BrowserRouter'
 
 // Some folks find value in a centralized route config.