message: Remove print that duplicates summary
  Fixing a small display bug from ##2424
diff: @@ -204,7 +204,6 @@ pub async fn producer_summary(
  if let Some(producer_stats) = producer.stats().await {
  if let Some(stats_bar) = maybe_stats_bar {
  stats_bar.set_message(format_summary_stats(producer_stats).await);
  - stats_bar.println(" ");
  } else if force_print_stats {
  println!("{}", format_summary_stats(producer_stats).await);
  println!();
  