removed unused dependencies from lib/api_service_test.dart

Author: rohansen856

test/api_service_test.dart

@@ -1,9 +1,7 @@
 import 'dart:convert';
-import 'dart:io';
 
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:get_test/utils/image_test_utils.dart';
 import 'package:mockito/annotations.dart';
 import 'package:mockito/mockito.dart';
 import 'package:http/http.dart' as http;