url: remove unused global variable

lib/url.js

@@ -79,18 +79,6 @@ var protocolPattern = /^([a-z0-9.+-]+:)/i,
       'javascript': true,
       'javascript:': true
     },
-    // protocols that always have a path component.
-    pathedProtocol = {
-      'http': true,
-      'https': true,
-      'ftp': true,
-      'gopher': true,
-      'file': true,
-      'http:': true,
-      'ftp:': true,
-      'gopher:': true,
-      'file:': true
-    },
     // protocols that always contain a // bit.
     slashedProtocol = {
       'http': true,