Fix missing variable in Worker\Directory

- Remove fixed comment in PortableContact

src/Protocol/PortableContact.php

@@ -816,7 +816,6 @@ class PortableContact
 			return false;
 		}
 
-		/// @fixme $element is unavailable here
 		$server["site_name"] = $xpath->evaluate("//head/title/text()")->item(0)->nodeValue;
 		return $server;
 	}