f No need to cast error

Author: tnull

src/event.rs

@@ -203,8 +203,7 @@ where
 	fn persist_queue(&self, locked_queue: &VecDeque<Arc<Event>>) -> Result<(), Error> {
 		self.persister
 			.persist(EVENTS_PERSISTENCE_KEY, &EventQueueSerWrapper(locked_queue))
-			.map_err(|_| Error::PersistenceFailed)?;
-		Ok(())
+			.map_err(|_| Error::PersistenceFailed)
 	}
 }