diff --git a/modules/angular2/src/http/backends/jsonp_backend.ts b/modules/angular2/src/http/backends/jsonp_backend.ts
index 3cfbb29466..9ef2a8fa6c 100644
--- a/modules/angular2/src/http/backends/jsonp_backend.ts
+++ b/modules/angular2/src/http/backends/jsonp_backend.ts
@@ -1,5 +1,5 @@
 import {ConnectionBackend, Connection} from '../interfaces';
-import {ReadyStates, RequestMethods, RequestMethodsMap} from '../enums';
+import {ReadyStates, RequestMethods} from '../enums';
 import {Request} from '../static_request';
 import {Response} from '../static_response';
 import {ResponseOptions, BaseResponseOptions} from '../base_response_options';
diff --git a/modules/angular2/src/http/backends/xhr_backend.ts b/modules/angular2/src/http/backends/xhr_backend.ts
index e5096520ac..3722382474 100644
--- a/modules/angular2/src/http/backends/xhr_backend.ts
+++ b/modules/angular2/src/http/backends/xhr_backend.ts
@@ -1,5 +1,5 @@
 import {ConnectionBackend, Connection} from '../interfaces';
-import {ReadyStates, RequestMethods, RequestMethodsMap, ResponseTypes} from '../enums';
+import {ReadyStates, RequestMethods, ResponseTypes} from '../enums';
 import {Request} from '../static_request';
 import {Response} from '../static_response';
 import {ResponseOptions, BaseResponseOptions} from '../base_response_options';
@@ -27,14 +27,11 @@ export class XHRConnection implements Connection {
   private _xhr;  // TODO: make type XMLHttpRequest, pending resolution of
                  // https://github.com/angular/ts2dart/issues/230
   constructor(req: Request, browserXHR: BrowserXhr, baseResponseOptions?: ResponseOptions) {
-    // TODO: get rid of this when enum lookups are available in ts2dart
-    // https://github.com/angular/ts2dart/issues/221
-    var requestMethodsMap = new RequestMethodsMap();
     this.request = req;
     this.response = new EventEmitter();
     this._xhr = browserXHR.build();
     // TODO(jeffbcross): implement error listening/propagation
-    this._xhr.open(requestMethodsMap.getMethod(ENUM_INDEX(req.method)), req.url);
+    this._xhr.open(RequestMethods[ENUM_INDEX(req.method)], req.url);
     this._xhr.addEventListener('load', (_) => {
       // responseText is the old-school way of retrieving response (supported by IE8 & 9)
       // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)
diff --git a/modules/angular2/src/http/enums.ts b/modules/angular2/src/http/enums.ts
index efdc8b6c78..1e0183ba66 100644
--- a/modules/angular2/src/http/enums.ts
+++ b/modules/angular2/src/http/enums.ts
@@ -46,13 +46,6 @@ export enum RequestMethods {
   PATCH
 }
 
-// TODO: Remove this when enum lookups are available in ts2dart
-// https://github.com/angular/ts2dart/issues/221
-export class RequestMethodsMap {
-  private _methods: List<string>;
-  constructor() { this._methods = ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS', 'HEAD', 'PATCH']; }
-  getMethod(method: number): string { return this._methods[method]; }
-}
 /**
  * All possible states in which a connection can be, based on
  * [States](http://www.w3.org/TR/XMLHttpRequest/#states) from the `XMLHttpRequest` spec, but with an