Remove outdated docs

Author: jkczyz

lightning/src/onion_message/messenger.rs

@@ -482,9 +482,6 @@ where
 	OMH::Target: OffersMessageHandler,
 	CMH::Target: CustomOnionMessageHandler,
 {
-	/// Handle an incoming onion message. Currently, if a message was destined for us we will log, but
-	/// soon we'll delegate the onion message to a handler that can generate invoices or send
-	/// payments.
 	fn handle_onion_message(&self, _peer_node_id: &PublicKey, msg: &OnionMessage) {
 		let control_tlvs_ss = match self.node_signer.ecdh(Recipient::Node, &msg.blinding_point, None) {
 			Ok(ss) => ss,