more refactoring of cookie example

Author: tj

examples/cookies/app.js

@@ -37,9 +37,7 @@ app.get('/forget', function(req, res){
 
 app.post('/', function(req, res){
   var minute = 60000;
-  if (req.body.remember) {
-    res.cookie('remember', 1, { maxAge: minute, path: '/' });
-  }
+  if (req.body.remember) res.cookie('remember', 1, { maxAge: minute });
   res.redirect('back');
 });