message: remove deliberate breaking of the submission which was used to test error handling
diff: @@ -487,7 +487,7 @@ static UniValue CpuMineBlock(unsigned int searchDuration, const UniValue &params
  tmp.push_back(Pair("coinbase", tmpstr));
  tmp.push_back(Pair("id", params["id"]));
  tmp.push_back(Pair("time", UniValue(header.nTime))); // Optional. We have changed so must send.
  - // tmp.push_back(Pair("nonce", UniValue(header.nNonce)));
  + tmp.push_back(Pair("nonce", UniValue(header.nNonce)));
  tmp.push_back(Pair("version", UniValue(header.nVersion))); // Optional. We may have changed so sending.
  ret.push_back(tmp);
  