GUI: Receive: Remove option to reuse a previous address

This was justified by the need to "resent" an invoice, but now that we have the request history, that need should be gone.

src/qt/forms/receivecoinsdialog.ui

@@ -28,23 +28,6 @@
      <layout class="QVBoxLayout" name="verticalLayout_3">
       <item>
        <layout class="QGridLayout" name="gridLayout">
-        <item row="7" column="2">
-         <widget class="QCheckBox" name="reuseAddress">
-          <property name="toolTip">
-           <string>Reuse one of the previously used receiving addresses. Reusing addresses has security and privacy issues. Do not use this unless re-generating a payment request made before.</string>
-          </property>
-          <property name="text">
-           <string>R&amp;euse an existing receiving address (not recommended)</string>
-          </property>
-         </widget>
-        </item>
-        <item row="7" column="0">
-         <widget class="QLabel" name="label_4">
-          <property name="text">
-           <string/>
-          </property>
-         </widget>
-        </item>
         <item row="6" column="0">
          <widget class="QLabel" name="label_3">
           <property name="toolTip">
@@ -127,7 +110,7 @@
           </property>
          </widget>
         </item>
-        <item row="8" column="2">
+        <item row="7" column="2">
          <layout class="QHBoxLayout" name="horizontalLayout">
           <item>
            <widget class="QPushButton" name="receiveButton">
@@ -184,7 +167,7 @@
           </item>
          </layout>
         </item>
-        <item row="8" column="0">
+        <item row="7" column="0">
          <widget class="QLabel" name="label_7">
           <property name="text">
            <string/>
@@ -324,7 +307,6 @@
   <tabstop>reqLabel</tabstop>
   <tabstop>reqAmount</tabstop>
   <tabstop>reqMessage</tabstop>
-  <tabstop>reuseAddress</tabstop>
   <tabstop>receiveButton</tabstop>
   <tabstop>clearButton</tabstop>
   <tabstop>recentRequestsView</tabstop>

src/qt/receivecoinsdialog.cpp

@@ -101,7 +101,6 @@ void ReceiveCoinsDialog::clear()
     ui->reqAmount->clear();
     ui->reqLabel->setText("");
     ui->reqMessage->setText("");
-    ui->reuseAddress->setChecked(false);
     updateDisplayUnit();
 }
 
@@ -130,25 +129,8 @@ void ReceiveCoinsDialog::on_receiveButton_clicked()
 
     QString address;
     QString label = ui->reqLabel->text();
-    if(ui->reuseAddress->isChecked())
-    {
-        /* Choose existing receiving address */
-        AddressBookPage dlg(platformStyle, AddressBookPage::ForSelection, AddressBookPage::ReceivingTab, this);
-        dlg.setModel(model->getAddressTableModel());
-        if(dlg.exec())
-        {
-            address = dlg.getReturnValue();
-            if(label.isEmpty()) /* If no label provided, use the previously used label */
-            {
-                label = model->getAddressTableModel()->labelForAddress(address);
-            }
-        } else {
-            return;
-        }
-    } else {
     /* Generate new receiving address */
     address = model->getAddressTableModel()->addRow(AddressTableModel::Receive, label, "");
-    }
     SendCoinsRecipient info(address, label,
         ui->reqAmount->value(), ui->reqMessage->text());
     ReceiveRequestDialog *dialog = new ReceiveRequestDialog(this);