example(rematch-tsx): fix type errors.

example/rematch-tsx/src/index.tsx

@@ -1,15 +1,13 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
 import { Router, withRouter, RouteComponentProps } from 'react-router-dom';
-import * as H from 'history';
-import { StaticContext } from 'react-router';
 import { Provider } from 'react-redux';
 import history from './routes/history';
 import { store } from './models';
 import Controller from './routes/Controller';
 import { getRouterData } from './routes/router';
 
-export type DefaultProps = React.PropsWithChildren<RouteComponentProps<any, StaticContext, H.LocationState>> & {
+export type DefaultProps = React.PropsWithChildren<RouteComponentProps<any>> & {
   routerData: typeof getRouterData;
 };