message: [clean] Clean code.
diff: @@ -49,11 +49,6 @@ where
  txpool: P,
  }
  -pub fn load_genesis_block() -> Block {
  - let header = BlockHeader::genesis_block_header_for_test();
  - Block::new_nil_block_for_test(header)
  -}
  -
  impl<E, C, S, P> BlockChain<E, C, S, P>
  where
  E: TransactionExecutor,
  