Remove av-store, av-distribution, chain-api subsystems from minimal node

[skunert]

This PR removes the following subsystems from the minimal node:

• Availability-Store (collator node should not store chunks)
• Availability-Distribution (since we have nothing to store, we do not distribute)
• Chain-API-Subsystem (This was used by the others)

Originally I was under the impression that we need these for PoV-Recovery, but that is not the case.
We still need to register the chunk fetching protocol, since we send requests for this. Answering was done by
the availability-distribution subsystem, which is now removed. If we receive such a request we always send back NoSuchChunk because we are guaranteed to not have it.

[bkchr]

Okay, this is unneeded. We can not do two things. Either we drop this channel or we do not even register the channel.

[bkchr]

Suggested change

	let (chunk_req_receiver, cfg) = IncomingRequest::get_config_receiver(request_protocol_names);
	config.network.request_response_protocols.push(cfg);
	let (_, cfg) = IncomingRequest::get_config_receiver(request_protocol_names);
	// We don't support inbound requests for this protocol.
	let cfg = RequestResponseConfig { inbound_queue: None, ..cfg };
	config.network.request_response_protocols.push(cfg);

[bkchr]

We should probably support this in Polkadot directly. When it is a collator/full node we should not register an incoming receiver

[skunert]

Waiting for paritytech/polkadot#6343, then we can remove the inbound channel.

[bkchr]

bot merge

[paritytech-processbot]

Waiting for commit status.