style: remove testing comments

Author: shotaronowhere

contracts/src/bridge/FastBridgeSenderToEthereum.sol

@@ -66,8 +66,6 @@ contract FastBridgeSenderToEthereum is SafeBridgeSenderToEthereum, IFastBridgeSe
      * @param _receiver The address of the contract on Ethereum which receives the calldata.
      * @param _calldata The receiving domain encoded message data.
      */
-    //0xa60a4db5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000
-    //0x5B38Da6a701c568545dCfcB03FcB875f56beddC4a60a4db55B38Da6a701c568545dCfcB03FcB875f56beddC4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000
     function sendFast(address _receiver, bytes memory _calldata) external override {
         bytes32 messageHash = _encode(_receiver, _calldata);
         insertInBatch(messageHash);