remove minimum total fee option

src/qt/coincontroldialog.cpp

@@ -513,8 +513,6 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
 
         // Fee
         nPayFee = CWallet::GetMinimumFee(nBytes, nTxConfirmTarget, ::mempool, ::feeEstimator);
-        if (nPayFee > 0 && coinControl->nMinimumTotalFee > nPayFee)
-            nPayFee = coinControl->nMinimumTotalFee;
 
         if (nPayAmount > 0)
         {
@@ -573,7 +571,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
     l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes));        // Bytes
     l7->setText(fDust ? tr("yes") : tr("no"));                               // Dust
     l8->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nChange));        // Change
-    if (nPayFee > 0 && (coinControl->nMinimumTotalFee < nPayFee))
+    if (nPayFee > 0)
     {
         l3->setText(ASYMP_UTF8 + l3->text());
         l4->setText(ASYMP_UTF8 + l4->text());

src/qt/forms/sendcoinsdialog.ui

@@ -861,19 +861,6 @@
                    </attribute>
                   </widget>
                  </item>
-                 <item>
-                  <widget class="QRadioButton" name="radioCustomAtLeast">
-                   <property name="toolTip">
-                    <string>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then &quot;per kilobyte&quot; only pays 250 satoshis in fee, while &quot;total at least&quot; pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</string>
-                   </property>
-                   <property name="text">
-                    <string>total at least</string>
-                   </property>
-                   <attribute name="buttonGroup">
-                    <string notr="true">groupCustomFee</string>
-                   </attribute>
-                  </widget>
-                 </item>
                  <item>
                   <widget class="BitcoinAmountField" name="customFee"/>
                  </item>

src/qt/sendcoinsdialog.cpp

@@ -111,7 +111,6 @@ SendCoinsDialog::SendCoinsDialog(const PlatformStyle *_platformStyle, QWidget *p
     ui->groupFee->setId(ui->radioCustomFee, 1);
     ui->groupFee->button((int)std::max(0, std::min(1, settings.value("nFeeRadio").toInt())))->setChecked(true);
     ui->groupCustomFee->setId(ui->radioCustomPerKilobyte, 0);
-    ui->groupCustomFee->setId(ui->radioCustomAtLeast, 1);
     ui->groupCustomFee->button((int)std::max(0, std::min(1, settings.value("nCustomFeeRadio").toInt())))->setChecked(true);
     ui->customFee->setValue(settings.value("nTransactionFee").toLongLong());
     ui->checkBoxMinimumFee->setChecked(settings.value("fPayOnlyMinFee").toBool());
@@ -608,7 +607,6 @@ void SendCoinsDialog::updateFeeSectionControls()
     ui->checkBoxMinimumFee      ->setEnabled(ui->radioCustomFee->isChecked());
     ui->labelMinFeeWarning      ->setEnabled(ui->radioCustomFee->isChecked());
     ui->radioCustomPerKilobyte  ->setEnabled(ui->radioCustomFee->isChecked() && !ui->checkBoxMinimumFee->isChecked());
-    ui->radioCustomAtLeast      ->setEnabled(ui->radioCustomFee->isChecked() && !ui->checkBoxMinimumFee->isChecked() && CoinControlDialog::coinControl->HasSelected());
     ui->customFee               ->setEnabled(ui->radioCustomFee->isChecked() && !ui->checkBoxMinimumFee->isChecked());
 }
 
@@ -619,19 +617,12 @@ void SendCoinsDialog::updateGlobalFeeVariables()
         int nConfirmTarget = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 2;
         payTxFee = CFeeRate(0);
 
-        // set nMinimumTotalFee to 0 to not accidentally pay a custom fee
-        CoinControlDialog::coinControl->nMinimumTotalFee = 0;
-
         // show the estimated required time for confirmation
         ui->confirmationTargetLabel->setText(GUIUtil::formatDurationStr(nConfirmTarget * Params().GetConsensus().nPowTargetSpacing) + " / " + tr("%n block(s)", "", nConfirmTarget));
     }
     else
     {
         payTxFee = CFeeRate(ui->customFee->value());
-
-        // if user has selected to set a minimum absolute fee, pass the value to coincontrol
-        // set nMinimumTotalFee to 0 in case of user has selected that the fee is per KB
-        CoinControlDialog::coinControl->nMinimumTotalFee = ui->radioCustomAtLeast->isChecked() ? ui->customFee->value() : 0;
     }
 }
 
@@ -830,21 +821,6 @@ void SendCoinsDialog::coinControlUpdateLabels()
     if (!model || !model->getOptionsModel())
         return;
 
-    if (model->getOptionsModel()->getCoinControlFeatures())
-    {
-        // enable minimum absolute fee UI controls
-        ui->radioCustomAtLeast->setVisible(true);
-
-        // only enable the feature if inputs are selected
-        ui->radioCustomAtLeast->setEnabled(ui->radioCustomFee->isChecked() && !ui->checkBoxMinimumFee->isChecked() &&CoinControlDialog::coinControl->HasSelected());
-    }
-    else
-    {
-        // in case coin control is disabled (=default), hide minimum absolute fee UI controls
-        ui->radioCustomAtLeast->setVisible(false);
-        return;
-    }
-
     // set pay amounts
     CoinControlDialog::payAmounts.clear();
     CoinControlDialog::fSubtractFeeFromAmount = false;

src/wallet/coincontrol.h

@@ -18,8 +18,6 @@ public:
     bool fAllowOtherInputs;
     //! Includes watch only addresses which match the ISMINE_WATCH_SOLVABLE criteria
     bool fAllowWatchOnly;
-    //! Minimum absolute fee (not per kilobyte)
-    CAmount nMinimumTotalFee;
     //! Override estimated feerate
     bool fOverrideFeeRate;
     //! Feerate to use if overrideFeeRate is true
@@ -40,7 +38,6 @@ public:
         fAllowOtherInputs = false;
         fAllowWatchOnly = false;
         setSelected.clear();
-        nMinimumTotalFee = 0;
         nFeeRate = CFeeRate(0);
         fOverrideFeeRate = false;
         nConfirmTarget = 0;

src/wallet/wallet.cpp

@@ -2599,9 +2599,6 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
                     currentConfirmationTarget = coinControl->nConfirmTarget;
 
                 CAmount nFeeNeeded = GetMinimumFee(nBytes, currentConfirmationTarget, ::mempool, ::feeEstimator);
-                if (coinControl && nFeeNeeded > 0 && coinControl->nMinimumTotalFee > nFeeNeeded) {
-                    nFeeNeeded = coinControl->nMinimumTotalFee;
-                }
                 if (coinControl && coinControl->fOverrideFeeRate)
                     nFeeNeeded = coinControl->nFeeRate.GetFee(nBytes);