removed sulu.node.name

__Tasks:__

- [ ] test coverage
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation

__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | no => https://github.com/sulu-cmf/sulu/pull/306
| Fixed tickets | none
| BC Breaks     | none
| Doc           | none
We can remove this? But once we merge the repositories we can run [phpcsfixer](https://github.com/fabpot/PHP-CS-Fixer) on the entire codebase and remove all unused use statements.