message: fix: clippy lint
diff: @@ -310,7 +310,7 @@ impl<CS: ChainStore + 'static> BlockAssembler<CS> {
  let txs_cycles_limit = cycles_limit - cellbase_cycle;
  let (entries, size, cycles) =
  chain_state.get_proposed_txs(txs_size_limit, txs_cycles_limit);
  - if entries.len() > 0 {
  + if !entries.is_empty() {
  log::info!(
  "[get_block_template] candidate txs count: {}, size: {}/{}, cycles:{}/{}",
  entries.len(),
  