Revert "http/https proxy (#7600)" (#7801)

This reverts commit da57fcb641.

flutter/lib/utils/http_service.dart

@@ -1,113 +0,0 @@
-import 'dart:convert';
-import 'package:http/http.dart' as http;
-import '../models/platform_model.dart';
-export 'package:http/http.dart' show Response;
-
-enum HttpMethod { get, post, put, delete }
-
-class HttpService {
-  Future<http.Response> sendRequest(
-    Uri url,
-    HttpMethod method, {
-    Map<String, String>? headers,
-    dynamic body,
-  }) async {
-    headers ??= {'Content-Type': 'application/json'};
-    // Determine if there is currently a proxy setting, and if so, use FFI to call the Rust HTTP method.
-    final isProxy = await bind.mainGetProxyStatus();
-
-    if (!isProxy) {
-      return await _pollFultterHttp(url, method, headers: headers, body: body);
-    }
-
-    String headersJson = jsonEncode(headers);
-    String methodName = method.toString().split('.').last;
-    await bind.mainHttpRequest(
-        url: url.toString(),
-        method: methodName.toLowerCase(),
-        body: body,
-        header: headersJson);
-
-    var resJson = await _pollForResponse(url.toString());
-    return _parseHttpResponse(resJson);
-  }
-
-  Future<http.Response> _pollFultterHttp(
-    Uri url,
-    HttpMethod method, {
-    Map<String, String>? headers,
-    dynamic body,
-  }) async {
-    var response = http.Response('', 400);
-
-    switch (method) {
-      case HttpMethod.get:
-        response = await http.get(url, headers: headers);
-        break;
-      case HttpMethod.post:
-        response = await http.post(url, headers: headers, body: body);
-        break;
-      case HttpMethod.put:
-        response = await http.put(url, headers: headers, body: body);
-        break;
-      case HttpMethod.delete:
-        response = await http.delete(url, headers: headers, body: body);
-        break;
-      default:
-        throw Exception('Unsupported HTTP method');
-    }
-
-    return response;
-  }
-
-  Future<String> _pollForResponse(String url) async {
-    String? responseJson = " ";
-    while (responseJson == " ") {
-      responseJson = await bind.mainGetHttpStatus(url: url);
-      if (responseJson == null) {
-        throw Exception('The HTTP request failed');
-      }
-      if (responseJson == " ") {
-        await Future.delayed(const Duration(milliseconds: 100));
-      }
-    }
-    return responseJson!;
-  }
-
-  http.Response _parseHttpResponse(String responseJson) {
-    try {
-      var parsedJson = jsonDecode(responseJson);
-      String body = parsedJson['body'];
-      Map<String, String> headers = {};
-      for (var key in parsedJson['headers'].keys) {
-        headers[key] = parsedJson['headers'][key];
-      }
-      int statusCode = parsedJson['status_code'];
-      return http.Response(body, statusCode, headers: headers);
-    } catch (e) {
-      throw Exception('Failed to parse response: $e');
-    }
-  }
-}
-
-Future<http.Response> get(Uri url, {Map<String, String>? headers}) async {
-  return await HttpService().sendRequest(url, HttpMethod.get, headers: headers);
-}
-
-Future<http.Response> post(Uri url,
-    {Map<String, String>? headers, Object? body, Encoding? encoding}) async {
-  return await HttpService()
-      .sendRequest(url, HttpMethod.post, body: body, headers: headers);
-}
-
-Future<http.Response> put(Uri url,
-    {Map<String, String>? headers, Object? body, Encoding? encoding}) async {
-  return await HttpService()
-      .sendRequest(url, HttpMethod.put, body: body, headers: headers);
-}
-
-Future<http.Response> delete(Uri url,
-    {Map<String, String>? headers, Object? body, Encoding? encoding}) async {
-  return await HttpService()
-      .sendRequest(url, HttpMethod.delete, body: body, headers: headers);
-}