Move code from sc-network-common back to sc-network (#13592)

* Move service tests to `client/network/tests`

These tests depend on `sc-network` and `sc-network-sync` so they should
live outside the crate.

* Move some configs from `sc-network-common` to `sc-network`

* Move `NetworkService` traits to `sc-network`

* Move request-responses to `sc-network`

* Remove more stuff

* Remove rest of configs from `sc-network-common` to `sc-network`

* Remove more stuff

* Fix warnings

* Update client/network/src/request_responses.rs

Co-authored-by: Dmitry Markin <dmitry@markin.tech>

* Fix cargo doc

---------

Co-authored-by: Dmitry Markin <dmitry@markin.tech>

substrate/client/network/sync/src/service/mock.rs

@@ -18,18 +18,18 @@
 
 use futures::channel::oneshot;
 use libp2p::{Multiaddr, PeerId};
+
 use sc_consensus::{BlockImportError, BlockImportStatus};
-use sc_network_common::{
+use sc_network::{
 	config::MultiaddrWithPeerId,
-	protocol::ProtocolName,
 	request_responses::{IfDisconnected, RequestFailure},
-	service::{
-		NetworkNotification, NetworkPeers, NetworkRequest, NetworkSyncForkRequest,
-		NotificationSender, NotificationSenderError,
-	},
+	types::ProtocolName,
+	NetworkNotification, NetworkPeers, NetworkRequest, NetworkSyncForkRequest,
+	NotificationSenderError, NotificationSenderT,
 };
 use sc_peerset::ReputationChange;
 use sp_runtime::traits::{Block as BlockT, NumberFor};
+
 use std::collections::HashSet;
 
 mockall::mock! {
@@ -135,7 +135,7 @@ mockall::mock! {
 			&self,
 			target: PeerId,
 			protocol: ProtocolName,
-		) -> Result<Box<dyn NotificationSender>, NotificationSenderError>;
+		) -> Result<Box<dyn NotificationSenderT>, NotificationSenderError>;
 		fn set_notification_handshake(&self, protocol: ProtocolName, handshake: Vec<u8>);
 	}
 }