message: Remove unused code, and fix impossible condition in asserts
diff: @@ -2064,11 +2064,9 @@ ByteCodeExecResult ByteCodeExec::processingResults(){
  uint64_t gasUsed = (uint64_t) result[i].execRes.gasUsed;
  uint64_t gasPrice = (uint64_t) txs[i].gasPrice();
  - assert(result[i].execRes.gasUsed < UINT64_MAX);
  - resultBCE.usedGas += (uint64_t) result[i].execRes.gasUsed;
  - uint64_t ref = (gas - gasUsed) * gasPrice;
  - assert(ref < INT64_MAX);
  - CAmount amount(ref);
  + resultBCE.usedGas += gasUsed;
  + int64_t amount = (gas - gasUsed) * gasPrice;
  + assert(amount >= 0); //don't allow negative gas, probably only possible by overflow
  if(amount > 0){
  CScript script(CScript() << OP_DUP << OP_HASH160 << txs[i].sender().asBytes() << OP_EQUALVERIFY << OP_CHECKSIG);
  resultBCE.refundOutputs.push_back(CTxOut(amount, script));
  