Remove reference to arguments which was unused and de-optimizes the c…

…onstructor.

lib/queue.js

@@ -5,7 +5,7 @@ var to_array = require("./to_array");
 
 function Queue() {
     this.tail = [];
-    this.head = to_array(arguments);
+    this.head = [];
     this.offset = 0;
 }