diff --git a/whatwg-fetch/index.d.ts b/whatwg-fetch/index.d.ts
deleted file mode 100644
index 67bde53016..0000000000
--- a/whatwg-fetch/index.d.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-// Type definitions for Fetch API
-// Project: https://github.com/github/fetch
-// Definitions by: Ryan Graham <https://github.com/ryan-codingintrigue>, Kagami Sascha Rosylight <https://github.com/saschanaz>
-// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-
-/// <reference types="whatwg-streams" />
-
-interface Window {
-    fetch(input: RequestInfo, init?: RequestInit): Promise<Response>;
-}
-declare let fetch: typeof window.fetch;
-
-declare type HeadersInit = Headers | string[][] | { [key: string]: string };
-declare class Headers {
-    constructor(init?: HeadersInit);
-
-    append(name: string, value: string): void;
-    delete(name: string): void;
-    get(name: string): string | null;
-    has(name: string): boolean;
-    set(name: string, value: string): void;
-
-    // WebIDL pair iterator: iterable<ByteString, ByteString>
-    entries(): IterableIterator<[string, string]>;
-    forEach(callback: (value: string, index: number, headers: Headers) => void, thisArg?: any): void;
-    keys(): IterableIterator<string>;
-    values(): IterableIterator<string>;
-    [Symbol.iterator](): IterableIterator<[string, string]>;
-}
-
-declare type BodyInit = Blob | ArrayBufferView | ArrayBuffer | FormData /* | URLSearchParams */ | string;
-declare type ResponseBodyInit = BodyInit | ReadableStream;
-interface Body {
-    readonly bodyUsed: boolean;
-    arrayBuffer(): Promise<ArrayBuffer>;
-    blob(): Promise<Blob>;
-    formData(): Promise<FormData>;
-    json(): Promise<any>;
-    json<T>(): Promise<T>;
-    text(): Promise<string>;
-}
-
-declare type RequestInfo = Request | string;
-declare class Request {
-    constructor(input: RequestInfo, init?: RequestInit);
-
-    readonly method: string;
-    readonly url: string;
-    readonly headers: Headers;
-
-    readonly type: RequestType
-    readonly destination: RequestDestination;
-    readonly referrer: string;
-    readonly referrerPolicy: ReferrerPolicy;
-    readonly mode: RequestMode;
-    readonly credentials: RequestCredentials;
-    readonly cache: RequestCache;
-    readonly redirect: RequestRedirect;
-    readonly integrity: string;
-    readonly keepalive: boolean;
-
-    clone(): Request;
-}
-interface Request extends Body {}
-interface RequestInit {
-    method?: string;
-    headers?: HeadersInit;
-    body?: BodyInit;
-    referrer?: string;
-    referrerPolicy?: ReferrerPolicy;
-    mode?: RequestMode;
-    credentials?: RequestCredentials;
-    cache?: RequestCache;
-    redirect?: RequestRedirect;
-    integrity?: string;
-    window?: null; // can only be set to null
-}
-
-type RequestType = "" | "audio" | "font" | "image" | "script" | "style" | "track" | "video";
-type RequestDestination = "" | "document" | "embed" | "font" | "image" | "manifest" | "media" | "object" | "report" | "script" | "serviceworker" | "sharedworker" | "style" | "worker" | "xslt";
-type RequestMode = "navigate" | "same-origin" | "no-cors" | "cors";
-type RequestCredentials = "omit" | "same-origin" | "include";
-type RequestCache = "default" | "no-store" | "reload" | "no-cache" | "force-cache" | "only-if-cached";
-type RequestRedirect = "follow" | "error" | "manual";
-
-type ReferrerPolicy = "" | "no-referrer" | "no-referrer-when-downgrade" | "same-origin" | "origin" | "strict-origin" | "origin-when-cross-origin" | "strict-origin-when-cross-origin" | "unsafe-url";
-
-declare class Response {
-    constructor(body?: ResponseBodyInit, init?: ResponseInit);
-
-    static error(): Response;
-    static redirect(url: string, status?: number): Response;
-
-    readonly type: ResponseType;
-
-    readonly url: string;
-    readonly redirected: boolean;
-    readonly status: number;
-    readonly ok: boolean;
-    readonly statusText: string;
-    readonly headers: Headers;
-    readonly body: ReadableStream | null;
-    readonly trailer: Promise<Headers>;
-
-    clone(): Response;
-}
-interface Response extends Body {}
-
-interface ResponseInit {
-    status?: number;
-    statusText?: string;
-    headers?: HeadersInit;
-}
-
-type ResponseType = "basic" | "cors" | "default" | "error" | "opaque" | "opaqueredirect";
diff --git a/whatwg-fetch/tsconfig.json b/whatwg-fetch/tsconfig.json
deleted file mode 100644
index 1855761487..0000000000
--- a/whatwg-fetch/tsconfig.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "commonjs",
-        "lib": [
-            "es6",
-            "dom"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "baseUrl": "../",
-        "typeRoots": [
-            "../"
-        ],
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "whatwg-fetch-tests.ts"
-    ]
-}
\ No newline at end of file
diff --git a/whatwg-fetch/whatwg-fetch-tests.ts b/whatwg-fetch/whatwg-fetch-tests.ts
deleted file mode 100644
index 6c5e509749..0000000000
--- a/whatwg-fetch/whatwg-fetch-tests.ts
+++ /dev/null
@@ -1,110 +0,0 @@
-
-
-function test_HeadersCopiedFromHeaders() {
-	var source = new Headers();
-	source.append('Content-Type', 'application/json');
-	return new Headers(source);
-}
-
-function test_HeadersCopiedFromHash() {
-	var source: DOMStringMap = {
-		'Content-Type': 'application/json'
-	};
-	return new Headers(source);
-}
-
-function test_fetchUrlWithOptions() {
-	var headers = new Headers();
-	headers.append("Content-Type", "application/json");
-	var requestOptions: RequestInit = {
-		method: "POST",
-		headers: headers,
-		mode: 'same-origin',
-		credentials: 'omit',
-		cache: 'default',
-		redirect: 'manual'
-	};
-	handlePromise(window.fetch("http://www.andlabs.net/html5/uCOR.php", requestOptions));
-}
-
-function test_fetchUrlWithHeadersObject() {
-	var requestOptions: RequestInit = {
-		method: "POST",
-		headers: {
-			'Content-Type': 'application/json'
-		}
-	};
-	handlePromise(window.fetch("http://www.andlabs.net/html5/uCOR.php", requestOptions));
-}
-
-function test_fetchUrl() {
-	handlePromise(window.fetch("http://www.andlabs.net/html5/uCOR.php"));
-}
-
-function test_fetchUrlWithRequestObject() {
-	var requestOptions: RequestInit = {
-		method: "POST",
-		headers: {
-			'Content-Type': 'application/json'
-		}
-	};
-	var request: Request = new Request("http://www.andlabs.net/html5/uCOR.php", requestOptions);
-	handlePromise(window.fetch(request));
-}
-
-function test_globalFetchVar() {
-	fetch('http://test.com', {})
-		.then(response => {
-			// for test only
-		});
-}
-
-function handlePromise(promise: Promise<Response>) {
-	promise.then((response) => {
-		if (response.type === 'basic') {
-			// for test only
-		}
-		return response.text();
-	}).then((text) => {
-		console.log(text);
-	});
-}
-
-function test_Body_json() {
-	interface FooBar {
-		foo: string;
-		bar: string;
-	}
-
-	fetch('http://test.com')
-		.then(response => response.json<FooBar>())
-		.then(fooBar => {
-			console.log(fooBar.foo);
-			console.log(fooBar.bar);
-		});
-
-	fetch('http://test.com')
-		.then(response => <Promise<FooBar>> response.json())
-		.then(fooBar => {
-			console.log(fooBar.foo);
-			console.log(fooBar.bar);
-		});
-
-	fetch('http://test.com')
-		.then(response => response.json() as Promise<FooBar>)
-		.then(fooBar => {
-			console.log(fooBar.foo);
-			console.log(fooBar.bar);
-		});
-
-	fetch('http://test.com')
-		.then(response => response.json())
-		.then(fooBar => {
-			// fooBar is of type any, not of type FooBar
-
-			// FIXME Was behaving properly with TypeScript 2.0.10, not anymore with 2.1.4
-			// See Wrong type with Promise chaining and 2.1.4 https://github.com/Microsoft/TypeScript/issues/12409
-			//console.log(fooBar.foo);
-			//console.log(fooBar.bar);
-		});
-}