message: Fix remaining clippy lints in small network
diff: @@ -238,7 +238,7 @@ where
  // server.
  if env::var(ENABLE_LIBP2P_NET_ENV_VAR).is_ok() {
  let model = SmallNetwork {
  - known_addresses: known_addresses.clone(),
  + known_addresses,
  certificate,
  secret_key,
  public_address,
  @@ -302,7 +302,7 @@ where
  ));
  let mut model = SmallNetwork {
  - known_addresses: known_addresses,
  + known_addresses,
  certificate,
  secret_key,
  public_address,
  @@ -875,7 +875,7 @@ where
  }
  }
  - for (_node_id, outgoing) in &self.outgoing {
  + for outgoing in self.outgoing.values() {
  if self.known_addresses.contains(&outgoing.peer_address) {
  return false;
  }
  