message: [statedb] fix clippy check problem
diff: @@ -530,7 +530,7 @@ mod tests {
  let state_root = chain_state_db.commit()?;
  let state1 = random_bytes();
  - chain_state_db.apply_write_set(to_write_set(access_path.clone(), state1))?;
  + chain_state_db.apply_write_set(to_write_set(access_path, state1))?;
  let new_state_root = chain_state_db.commit()?;
  assert_ne!(state_root, new_state_root);
  Ok(())
  @@ -542,7 +542,7 @@ mod tests {
  let chain_state_db = ChainStateDB::new(Arc::new(storage), None);
  let access_path = access_path::random_resource();
  let state0 = random_bytes();
  - chain_state_db.apply_write_set(to_write_set(access_path.clone(), state0))?;
  + chain_state_db.apply_write_set(to_write_set(access_path, state0))?;
  chain_state_db.commit()?;
  chain_state_db.flush()?;
  