Resolves #318 add mobile_app integration

lib/entity.page.dart

@@ -46,10 +46,7 @@ class _EntityViewPageState extends State<EntityViewPage> {
         // the App.build method, and use it to set our appbar title.
         title: new Text(_title),
       ),
-      body: HomeAssistantModel(
-          homeAssistant: widget.homeAssistant,
-          child: widget.homeAssistant.entities.get(widget.entityId).buildEntityPageWidget(context)
-      ),
+      body: widget.homeAssistant.entities.get(widget.entityId).buildEntityPageWidget(context),
     );
   }