diff --git a/prebuilt/iot-gateway/node_modules/ee-first/index.js b/prebuilt/iot-gateway/node_modules/ee-first/index.js
+++ /dev/null
@@ -1,95 +0,0 @@
-/*!
- * ee-first
- * Copyright(c) 2014 Jonathan Ong
- * MIT Licensed
- */
-
-'use strict'
-
-/**
- * Module exports.
- * @public
- */
-
-module.exports = first
-
-/**
- * Get the first event in a set of event emitters and event pairs.
- *
- * @param {array} stuff
- * @param {function} done
- * @public
- */
-
-function first(stuff, done) {
- if (!Array.isArray(stuff))
- throw new TypeError('arg must be an array of [ee, events...] arrays')
-
- var cleanups = []
-
- for (var i = 0; i < stuff.length; i++) {
- var arr = stuff[i]
-
- if (!Array.isArray(arr) || arr.length < 2)
- throw new TypeError('each array member must be [ee, events...]')
-
- var ee = arr[0]
-
- for (var j = 1; j < arr.length; j++) {
- var event = arr[j]
- var fn = listener(event, callback)
-
- // listen to the event
- ee.on(event, fn)
- // push this listener to the list of cleanups
- cleanups.push({
- ee: ee,
- event: event,
- fn: fn,
- })
- }
- }
-
- function callback() {
- cleanup()
- done.apply(null, arguments)
- }
-
- function cleanup() {
- var x
- for (var i = 0; i < cleanups.length; i++) {
- x = cleanups[i]
- x.ee.removeListener(x.event, x.fn)
- }
- }
-
- function thunk(fn) {
- done = fn
- }
-
- thunk.cancel = cleanup
-
- return thunk
-}
-
-/**
- * Create the event listener.
- * @private
- */
-
-function listener(event, done) {
- return function onevent(arg1) {
- var args = new Array(arguments.length)
- var ee = this
- var err = event === 'error'
- ? arg1
- : null
-
- // copy args to prevent arguments escaping scope
- for (var i = 0; i < args.length; i++) {
- args[i] = arguments[i]
- }
-
- done(err, ee, event, args)
- }
-}