Drop/replace the ProceduralCall class for hooks

Quick observation from my experiments:

We register the hooks as event listeners using service tags.
This is why it is not straightforward to register a function, even though symfony EventDispatcher by itself does allow that.

This means we better postpone this change until after 🐛 HookCollectorPass registers event listeners but they do not follow the required calling convention Active .

I'm not sure this status is correct, but I'm not convinced this is the right way to go. There is still some discussion in the impermeable list issue.