Update all the samples.

(except clojure + scalatra, because those are broken, will fixed with later master merge.)

samples/server/petstore/nodejs-google-cloud-functions/controllers/User.js

@@ -2,10 +2,8 @@
 
 var url = require('url');
 
-
 var User = require('./UserService');
 
-
 module.exports.createUser = function createUser (req, res, next) {
   User.createUser(req.swagger.params, res, next);
 };