url: remove redundant assignment in url.parse

PR-URL: https://github.com/iojs/io.js/pull/1095
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Nicu Micleușanu <micnic90@gmail.com>

lib/url.js

@@ -276,7 +276,6 @@ Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
     var p = this.port ? ':' + this.port : '';
     var h = this.hostname || '';
     this.host = h + p;
-    this.href += this.host;
 
     // strip [ and ] from the hostname
     // the host field still retains them, though