[chainmaker][#533]remove unused variable
@@ -272,7 +272,6 @@ void BoatHlchainmakerWalletDeInit(BoatHlchainmakerWallet *wallet_ptr)
BOAT_RESULT BoatHlChainmakerTxInit(const BoatHlchainmakerWallet* wallet_ptr, BoatHlchainmakerTx* tx_ptr)
{
- BUINT32 stringLen;
BOAT_RESULT result = BOAT_SUCCESS;
if ((tx_ptr == NULL) || (wallet_ptr == NULL))
