去除无关的代码

lib/home_page.dart

@@ -26,8 +26,6 @@ import 'models/user.dart';
 
 import 'package:shared_preferences/shared_preferences.dart';
 
-import 'package:flutter_markdown/flutter_markdown.dart';
-
 import 'pages/apps_page.dart';
 
 import 'pages/chat_bubble.dart';