async_client: fix clippy warning
@@ -674,7 +674,6 @@ impl AsyncClient {
for mut event in &mut room.timeline.events {
let decrypted_event = {
let mut client = self.base_client.write().await;
- let mut timeline_update = false;
let (decrypt_ev, timeline_update) = client
.receive_joined_timeline_event(room_id, &mut event)
.await;
