chore: disable dart for HTTP package

BREAKING CHANGE

Stop supporting http module in Dart. This is because Dart has a
well developed http package which should be used by Dart
customers instead.

modules/http/http_sfx.dart

@@ -1,3 +0,0 @@
-library http.sfx;
-
-// empty as we don't have a version for Dart

modules/http/index.dart

@@ -1,3 +0,0 @@
-library http.index;
-
-//no dart implementation

modules/http/pubspec.yaml

@@ -1,19 +0,0 @@
-name: http
-version: <%= packageJson.version %>
-authors:
-<%= Object.keys(packageJson.contributors).map(function(name) {
-  return '- '+name+' <'+packageJson.contributors[name]+'>';
-}).join('\n') %>
-description: Angular 2 Http Module
-homepage: <%= packageJson.homepage %>
-environment:
-  sdk: '>=1.10.0 <2.0.0'
-dependencies:
-  angular2: '^<%= packageJson.version %>'
-dev_dependencies:
-  guinness: '^0.1.17'
-dependency_overrides:
-  angular2:
-    path: ../angular2
-transformers:
-- angular2

modules/http/src/backends/browser_jsonp.dart

@@ -1,62 +0,0 @@
-library angular2_http.src.backends.browser_jsonp;
-
-import 'package:angular2/di.dart';
-import 'dart:html' show document;
-import 'dart:js' show context, JsObject, JsArray;
-
-int _nextRequestId = 0;
-const JSONP_HOME = '__ng_jsonp__';
-
-var _jsonpConnections = null;
-
-JsObject _getJsonpConnections() {
-  if (_jsonpConnections == null) {
-    _jsonpConnections = context[JSONP_HOME] = new JsObject(context['Object']);
-  }
-  return _jsonpConnections;
-}
-
-// Make sure not to evaluate this in a non-browser environment!
-@Injectable()
-class BrowserJsonp {
-  // Construct a <script> element with the specified URL
-  dynamic build(String url) {
-    var node = document.createElement('script');
-    node.src = url;
-    return node;
-  }
-
-  nextRequestID() {
-    return "__req${_nextRequestId++}";
-  }
-
-  requestCallback(String id) {
-    return """${JSONP_HOME}.${id}.finished""";
-  }
-
-  exposeConnection(String id, dynamic connection) {
-    var connections = _getJsonpConnections();
-    var wrapper = new JsObject(context['Object']);
-
-    wrapper['_id'] = id;
-    wrapper['__dart__'] = connection;
-    wrapper['finished'] = ([dynamic data]) => connection.finished(data);
-
-    connections[id] = wrapper;
-  }
-
-  removeConnection(String id) {
-    var connections = _getJsonpConnections();
-    connections[id] = null;
-  }
-
-  // Attach the <script> element to the DOM
-  send(dynamic node) {
-    document.body.append(node);
-  }
-
-  // Remove <script> element from the DOM
-  cleanup(dynamic node) {
-    node.remove();
-  }
-}

modules/http/src/backends/browser_xhr.dart

@@ -1,11 +0,0 @@
-library angular2_http.src.backends.browser_xhr;
-
-import 'dart:html' show HttpRequest;
-import 'package:angular2/di.dart';
-
-@Injectable()
-class BrowserXhr {
-  HttpRequest build() {
-    return new HttpRequest();
-  }
-}

modules/http/src/http_utils.dart

@@ -1,8 +0,0 @@
-library angular2_http.src.http_utils;
-
-import 'dart:js' show JsObject;
-import 'dart:collection' show LinkedHashMap, LinkedHashSet;
-
-bool isJsObject(o) {
-  return o is JsObject || o is LinkedHashMap || o is LinkedHashSet;
-}