convert Resolver into a Service.

Signed-off-by: Jason Volk <jason@zemos.net>

src/service/sending/mod.rs

@@ -7,7 +7,7 @@ mod sender;
 use std::fmt::Debug;
 
 use conduit::{err, Result};
-pub use resolve::{resolve_actual_dest, CachedDest, CachedOverride, FedDest};
+pub use resolve::resolve_actual_dest;
 use ruma::{
 	api::{appservice::Registration, OutgoingRequest},
 	OwnedServerName, OwnedUserId, RoomId, ServerName, UserId,