diff --git a/example/iot-gateway/node_modules/arraybuffer.slice/index.js b/example/iot-gateway/node_modules/arraybuffer.slice/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * An abstraction for slicing an arraybuffer even when
- * ArrayBuffer.prototype.slice is not supported
- *
- * @api public
- */
-
-module.exports = function(arraybuffer, start, end) {
- var bytes = arraybuffer.byteLength;
- start = start || 0;
- end = end || bytes;
-
- if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
-
- if (start < 0) { start += bytes; }
- if (end < 0) { end += bytes; }
- if (end > bytes) { end = bytes; }
-
- if (start >= bytes || start >= end || bytes === 0) {
- return new ArrayBuffer(0);
- }
-
- var abv = new Uint8Array(arraybuffer);
- var result = new Uint8Array(end - start);
- for (var i = start, ii = 0; i < end; i++, ii++) {
- result[ii] = abv[i];
- }
- return result.buffer;
-};