qt: status WalletModel::Aborted is no longer used

Aborting transactions happens in the GUI now as it should,
not the backend.

Author: laanwj

src/qt/sendcoinsdialog.cpp

@@ -452,9 +452,8 @@ void SendCoinsDialog::processSendCoinsReturn(const WalletModel::SendCoinsReturn
         msgParams.first = tr("The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
         msgParams.second = CClientUIInterface::MSG_ERROR;
         break;
-    // OK and Aborted are included to prevent a compiler warning.
+    // included to prevent a compiler warning.
     case WalletModel::OK:
-    case WalletModel::Aborted:
     default:
         return;
     }

src/qt/walletmodel.h

@@ -75,8 +75,7 @@ class WalletModel : public QObject
         AmountWithFeeExceedsBalance,
         DuplicateAddress,
         TransactionCreationFailed, // Error returned when wallet is still locked
-        TransactionCommitFailed,
-        Aborted
+        TransactionCommitFailed
     };
 
     enum EncryptionStatus
@@ -103,7 +102,7 @@ class WalletModel : public QObject
     // Return status record for SendCoins, contains error id + information
     struct SendCoinsReturn
     {
-        SendCoinsReturn(StatusCode status = Aborted):
+        SendCoinsReturn(StatusCode status = OK):
             status(status) {}
         StatusCode status;
     };