diff --git a/example/iot-gateway/node_modules/has-binary/index.js b/example/iot-gateway/node_modules/has-binary/index.js
+++ /dev/null
@@ -1,59 +0,0 @@
-
-/*
- * Module requirements.
- */
-
-var isArray = require('isarray');
-
-/**
- * Module exports.
- */
-
-module.exports = hasBinary;
-
-/**
- * Checks for binary data.
- *
- * Right now only Buffer and ArrayBuffer are supported..
- *
- * @param {Object} anything
- * @api public
- */
-
-function hasBinary(data) {
-
- function _hasBinary(obj) {
- if (!obj) return false;
-
- if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
- (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
- (global.Blob && obj instanceof Blob) ||
- (global.File && obj instanceof File)
- ) {
- return true;
- }
-
- if (isArray(obj)) {
- for (var i = 0; i < obj.length; i++) {
- if (_hasBinary(obj[i])) {
- return true;
- }
- }
- } else if (obj && 'object' == typeof obj) {
- // see: https://github.com/Automattic/has-binary/pull/4
- if (obj.toJSON && 'function' == typeof obj.toJSON) {
- obj = obj.toJSON();
- }
-
- for (var key in obj) {
- if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
- return true;
- }
- }
- }
-
- return false;
- }
-
- return _hasBinary(data);
-}