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diff --git a/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js b/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js
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index d943c65..0000000
--- a/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-"use strict";
-
-var { setTimeout } = require("../timer");
-
-/**
- * Takes a function and returns a wrapped one instead, calling which will call
- * original function in the next turn of event loop. This is basically utility
- * to do `setTimeout(function() { ... }, 0)`, with a difference that returned
- * function is reused, instead of creating a new one each time. This also allows
- * to use this functions as event listeners.
- */
-function Enqueued(callee) {
- return function enqueued()
- setTimeout(invoke, 0, callee, arguments, this);
-}
-exports.Enqueued = Enqueued;
-
-/**
- * Invokes `callee` by passing `params` as an arguments and `self` as `this`
- * pseudo-variable. Returns value that is returned by a callee.
- * @param {Function} callee
- * Function to invoke.
- * @param {Array} params
- * Arguments to invoke function with.
- * @param {Object} self
- * Object to be passed as a `this` pseudo variable.
- */
-function invoke(callee, params, self) callee.apply(self, params);
-exports.invoke = invoke;
-
-/**
- * Curries a function with the arguments given.
- *
- * @param {Function} fn
- * The function to curry
- *
- * @returns The function curried
- */
-function curry(fn) {
- if (typeof fn !== "function")
- throw new TypeError(String(fn) + " is not a function");
-
- let args = Array.slice(arguments, 1);
-
- return function() fn.apply(this, args.concat(Array.slice(arguments)));
-}
-exports.curry = curry;