message: wallet: Don't override signing errors
diff: @@ -2538,23 +2538,6 @@ bool CWallet::SignTransaction(CMutableTransaction& tx, const std::map<COutPoint,
  }
  // At this point, one input was not fully signed otherwise we would have exited already
  - // Find that input and figure out what went wrong.
  - for (unsigned int i = 0; i < tx.vin.size(); i++) {
  - // Get the prevout
  - CTxIn& txin = tx.vin[i];
  - auto coin = coins.find(txin.prevout);
  - if (coin == coins.end() || coin->second.IsSpent()) {
  - input_errors[i] = "Input not found or already spent";
  - continue;
  - }
  -
  - // Check if this input is complete
  - SignatureData sigdata = DataFromTransaction(tx, i, coin->second.out);
  - if (!sigdata.complete) {
  - input_errors[i] = "Unable to sign input, missing keys";
  - continue;
  - }
  - }
  return false;
  }
  