Remove outdated note.
The MetaAddr type is used not just in the Bitcoin code so it doesn't make sense
to keep it in the Bitcoin protocol implementation.
@@ -18,9 +18,6 @@ use crate::protocol::types::PeerServices;
/// An address with metadata on its advertised services and last-seen time.
///
/// [Bitcoin reference](https://en.bitcoin.it/wiki/Protocol_documentation#Network_address)
-// XXX determine whether we will use this struct in *our* networking handling
-// code, or just in the definitions of the networking protocol (in which case
-// it should live in the protocol submodule)
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub struct MetaAddr {
/// The peer's address.
