Remove ergebnis/composer-normalize

[walbo]

As discussed in techlead meeting 4.oct, remove the normalize package from project base.

[Clorith]

For the sake of completeness, and the rationale behind it:

Although making composer.json follow a fixed set of rules, it adds unnecessary complexity to a setup, and as it is currently set up, it is a dev-dependency, meaning it will cause fatal errors during deployment flows, where --no-dev flags are passed.

If a dev wants to normalize the composer file of a project, they can of course run the command on their own, but maintaining Project Base as lean as possible makes sense, and leaves one less package to keep up to date :)