remove landing page

entry/client.js

@@ -26,7 +26,7 @@ const render = (hydrate = false) => {
     <AppContainer>
       <ApolloProvider client={client}>
         <BrowserRouter>
-          <App context={{ hostname: location.hostname }} />
+          <App context={{}} />
         </BrowserRouter>
       </ApolloProvider>
     </AppContainer>

entry/server.js

@@ -41,7 +41,7 @@ export default options => (req, res) => {
     <StyleSheetManager sheet={sheet.instance}>
       <ApolloProvider client={client}>
         <StaticRouter location={req.url} context={router}>
-          <App context={{ hostname: req.hostname }} />
+          <App context={{}} />
         </StaticRouter>
       </ApolloProvider>
     </StyleSheetManager>

src/App.js

@@ -7,7 +7,6 @@ import Helmet from "react-helmet";
 import FocusEffect from "./ui/components/FocusEffect";
 
 import AppHeader from "./components/AppHeader";
-import Introduction from "./pages/Introduction";
 import Home from "./pages/Home";
 import TopicCreator from "./pages/TopicCreator";
 
@@ -28,33 +27,17 @@ class App extends React.Component {
     context: PropTypes.object.isRequired,
   };
 
-  isPreview() {
-    const hostname = this.props.context.hostname;
-    return (
-      process.env.NODE_ENV !== "production" ||
-      hostname === "preview.xn--omega.com"
-    );
-  }
-
   render() {
     return [
       <Helmet key="helmet" defaultTitle="ω bbs" titleTemplate="%s - ω bbs" />,
       <FocusEffect key="focus" />,
       this.isPreview() && <AppHeader key="header" />,
       <div key="root">
-        {this.isPreview() ? (
-          <Switch key={true}>
-            <Route exact path="/" component={Home} />
-            <Route path="/board/:board" component={Home} />
-            <Route path="/topic/new" component={TopicCreator} />
-            <Route path="/introduction" component={Introduction} />
-          </Switch>
-        ) : (
-          <Switch key={false}>
-            <Route exact path="/" component={Introduction} />
-            <Route path="/introduction" component={Introduction} />
-          </Switch>
-        )}
+        <Switch key={true}>
+          <Route exact path="/" component={Home} />
+          <Route path="/board/:board" component={Home} />
+          <Route path="/topic/new" component={TopicCreator} />
+        </Switch>
       </div>,
     ];
   }