get rid of unnecessary list types

lib/relay/components/App.js

@@ -4,7 +4,7 @@ import Relay from 'react-relay';
 class App extends React.Component {
   render() {
     var viewer = this.props.viewer,
-      house = viewer.house.edges[0].node;
+      house = viewer.house;
     return (
       <div>
         <h1>Hi, {viewer.username}</h1>
@@ -20,11 +20,7 @@ export default Relay.createContainer(App, {
       fragment on User {
         username
         house {
-          edges {
-            node {
-              name
-            }
-          }
+          name
         }
       }
     `,