99 problems, and production only errors are 98 of them

server/server.js

@@ -313,7 +313,6 @@ if (process.env.NODE_ENV === 'production') {
     app.emit('started', 'https://' + process.env.HOST + ':' + app.get('port'));
   });
 } else {
-  app.start = function () {
   app.listen(app.get('port'), function () {
     console.log(
       'FreeCodeCamp server listening on port %d in %s mode',
@@ -321,10 +320,6 @@ if (process.env.NODE_ENV === 'production') {
       app.get('env')
     );
   });
-  };
-  if (require.main === module) {
-    app.start();
-  }
 }
 
 // start the server if `$ node server.js`