[qt] Remove 0-fee from send dialog

src/qt/forms/sendcoinsdialog.ui

@@ -617,7 +617,7 @@
         <x>0</x>
         <y>0</y>
         <width>830</width>
-        <height>68</height>
+        <height>104</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,1">
@@ -1167,59 +1167,6 @@
              </item>
             </layout>
            </item>
-           <item>
-            <layout class="QHBoxLayout" name="horizontalLayoutFee5" stretch="0,0,0">
-             <property name="spacing">
-              <number>8</number>
-             </property>
-             <property name="bottomMargin">
-              <number>4</number>
-             </property>
-             <item>
-              <widget class="QCheckBox" name="checkBoxFreeTx">
-               <property name="text">
-                <string>Send as zero-fee transaction if possible</string>
-               </property>
-              </widget>
-             </item>
-             <item>
-              <widget class="QLabel" name="labelFreeTx">
-               <property name="text">
-                <string>(confirmation may take longer)</string>
-               </property>
-               <property name="margin">
-                <number>5</number>
-               </property>
-              </widget>
-             </item>
-             <item>
-              <spacer name="horizontalSpacerFee5">
-               <property name="orientation">
-                <enum>Qt::Horizontal</enum>
-               </property>
-               <property name="sizeHint" stdset="0">
-                <size>
-                 <width>1</width>
-                 <height>1</height>
-                </size>
-               </property>
-              </spacer>
-             </item>
-            </layout>
-           </item>
-           <item>
-            <spacer name="verticalSpacerFee2">
-             <property name="orientation">
-              <enum>Qt::Vertical</enum>
-             </property>
-             <property name="sizeHint" stdset="0">
-              <size>
-               <width>1</width>
-               <height>1</height>
-              </size>
-             </property>
-            </spacer>
-           </item>
           </layout>
          </widget>
         </item>

src/qt/sendcoinsdialog.cpp

@@ -115,7 +115,6 @@ SendCoinsDialog::SendCoinsDialog(const PlatformStyle *platformStyle, QWidget *pa
     ui->sliderSmartFee->setValue(settings.value("nSmartFeeSliderPosition").toInt());
     ui->customFee->setValue(settings.value("nTransactionFee").toLongLong());
     ui->checkBoxMinimumFee->setChecked(settings.value("fPayOnlyMinFee").toBool());
-    ui->checkBoxFreeTx->setChecked(settings.value("fSendFreeTransactions").toBool());
     minimizeFeeSection(settings.value("fFeeSectionMinimized").toBool());
 }
 
@@ -170,8 +169,6 @@ void SendCoinsDialog::setModel(WalletModel *model)
         connect(ui->checkBoxMinimumFee, SIGNAL(stateChanged(int)), this, SLOT(updateFeeSectionControls()));
         connect(ui->checkBoxMinimumFee, SIGNAL(stateChanged(int)), this, SLOT(updateGlobalFeeVariables()));
         connect(ui->checkBoxMinimumFee, SIGNAL(stateChanged(int)), this, SLOT(coinControlUpdateLabels()));
-        connect(ui->checkBoxFreeTx, SIGNAL(stateChanged(int)), this, SLOT(updateGlobalFeeVariables()));
-        connect(ui->checkBoxFreeTx, SIGNAL(stateChanged(int)), this, SLOT(coinControlUpdateLabels()));
         ui->customFee->setSingleStep(CWallet::GetRequiredFee(1000));
         updateFeeSectionControls();
         updateMinFeeLabel();
@@ -189,7 +186,6 @@ SendCoinsDialog::~SendCoinsDialog()
     settings.setValue("nSmartFeeSliderPosition", ui->sliderSmartFee->value());
     settings.setValue("nTransactionFee", (qint64)ui->customFee->value());
     settings.setValue("fPayOnlyMinFee", ui->checkBoxMinimumFee->isChecked());
-    settings.setValue("fSendFreeTransactions", ui->checkBoxFreeTx->isChecked());
 
     delete ui;
 }
@@ -605,8 +601,6 @@ void SendCoinsDialog::updateGlobalFeeVariables()
         // 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;
     }
-
-    fSendFreeTransactions = ui->checkBoxFreeTx->isChecked();
 }
 
 void SendCoinsDialog::updateFeeMinimizedLabel()

src/wallet/wallet.cpp

@@ -2970,7 +2970,8 @@ std::string CWallet::GetWalletHelpString(bool showDebug)
                                                             CURRENCY_UNIT, FormatMoney(payTxFee.GetFeePerK())));
     strUsage += HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions on startup"));
     strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet on startup"));
-    strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), DEFAULT_SEND_FREE_TRANSACTIONS));
+    if (showDebug)
+        strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), DEFAULT_SEND_FREE_TRANSACTIONS));
     strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE));
     strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
     strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));