remove async_trait for traits declared in garage_net

src/rpc/system.rs

@@ -7,7 +7,6 @@ use std::sync::{Arc, RwLock, RwLockReadGuard};
 use std::time::{Duration, Instant};
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
 use futures::join;
 use serde::{Deserialize, Serialize};
 use sodiumoxide::crypto::sign::ed25519;
@@ -749,7 +748,6 @@ impl System {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<SystemRpc> for System {
 	async fn handle(self: &Arc<Self>, msg: &SystemRpc, from: NodeID) -> Result<SystemRpc, Error> {
 		match msg {