Remove now unused tutorial route and business logic

We can bring that back again if needed

src/server.js

@@ -113,7 +113,6 @@ function initializeExpressSync() {
     router.get ('/api/v1/profile', profileScope, routes.profile.get);
     router.post('/api/v1/profile', profileScope, routes.profile.update);
     router.post('/api/v1/profile/password', profileScope, routes.user.verifyPassword, routes.profile.changePassword);
-    router.post('/api/v1/profile/tutorial', profileScope, routes.profile.setShowTutorial);
 
     // user routes
     router.get ('/api/v1/users', usersScope, routes.user.requireAdmin, routes.user.list);