message: [consensus] removing the `terminate` in chained_bft_smr loop
  The consensus loop/select has a terminate that should not be reachable as the loop should run forever.
  This commit removes it.
  Closes:
  Approved by: zekun000
diff: @@ -137,9 +137,6 @@ impl<T: Payload> ChainedBftSMR<T> {
  idle_duration = pre_select_instant.elapsed();
  epoch_manager.process_epoch_retrieval(epoch_retrieval_and_peer.0, epoch_retrieval_and_peer.1).await
  }
  - complete => {
  - break;
  - }
  }
  counters::EVENT_PROCESSING_LOOP_BUSY_DURATION_S
  .observe_duration(pre_select_instant.elapsed() - idle_duration);
  