移除无用代码

lib/report_info/report_info.dart

@@ -1,5 +1,3 @@
-import 'dart:html';
-
 import 'package:fis_lib_report/converts/event_type.dart';
 import 'package:fis_lib_report/report/element_tag.dart';
 import 'package:fis_lib_report/report/element_type.dart';