nodejs provides stream natively

--- a/index.js
+++ b/index.js
@@ -1,4 +1,4 @@
-var Transform = require('readable-stream').Transform;
+var Transform = require('stream').Transform;
 var inherits = require('inherits');
 var cyclist = require('cyclist');
 var util = require('util');
--- a/package.json
+++ b/package.json
@@ -14,7 +14,6 @@
   "author": "Mathias Buus Madsen <mathiasbuus@gmail.com>",
   "dependencies": {
     "cyclist": "~0.2.2",
-    "inherits": "^2.0.3",
-    "readable-stream": "^2.1.5"
+    "inherits": "^2.0.3"
   }
 }