message: [network] remove unnecessary nesting
  This nesting adds more overhead to reading the code
  Closes:
diff: @@ -517,7 +517,8 @@ where
  );
  }
  } else {
  - self.dial_peer(requested_peer_id, addr, response_tx).await;
  + let request = TransportRequest::DialPeer(requested_peer_id, addr, response_tx);
  + self.transport_reqs_tx.send(request).await.unwrap();
  };
  }
  ConnectionRequest::DisconnectPeer(peer_id, resp_tx) => {
  @@ -715,16 +716,6 @@ where
  }
  }
  - async fn dial_peer(
  - &mut self,
  - peer_id: PeerId,
  - address: NetworkAddress,
  - response_tx: oneshot::Sender<Result<(), PeerManagerError>>,
  - ) {
  - let request = TransportRequest::DialPeer(peer_id, address, response_tx);
  - self.transport_reqs_tx.send(request).await.unwrap();
  - }
  -
  fn spawn_peer_network_events_handler(
  &self,
  peer_id: PeerId,
  