fix analysis

Author: dcharkes

pkgs/native_assets_cli/test/model/asset_test.dart

@@ -4,7 +4,6 @@
 
 import 'package:collection/collection.dart';
 import 'package:native_assets_cli/native_assets_cli_internal.dart';
-import 'package:native_assets_cli/src/api/asset.dart';
 import 'package:test/test.dart';
 import 'package:yaml/yaml.dart';