Remove unused code into GUI

src/Gui/QuantitySpinBox.cpp

@@ -889,27 +889,6 @@ void QuantitySpinBox::closeEvent(QCloseEvent * event)
 
 bool QuantitySpinBox::event(QEvent * event)
 {
-    // issue #0004059: Tooltips for Gui::QuantitySpinBox not showing
-    // Here we must not try to show the tooltip of the icon label
-    // because it would override a custom tooltip set to this widget.
-    //
-    // We could also check if the text of this tooltip is empty but
-    // it will fail in cases where the widget is embedded into the
-    // property editor and the corresponding item has set a tooltip.
-    // Instead of showing the item's tooltip it will again show the
-    // tooltip of the icon label.
-#if 0
-    if (event->type() == QEvent::ToolTip) {
-        if (isBound() && getExpression() && lineEdit()->isReadOnly()) {
-            QHelpEvent * helpEvent = static_cast<QHelpEvent*>(event);
-
-            QToolTip::showText( helpEvent->globalPos(), Base::Tools::fromStdString(getExpression()->toString()), this);
-            event->accept();
-            return true;
-        }
-    }
-#endif
-
     return QAbstractSpinBox::event(event);
 }
 
@@ -1002,7 +981,6 @@ Base::Quantity QuantitySpinBox::valueFromText(const QString &text) const
 QValidator::State QuantitySpinBox::validate(QString &text, int &pos) const
 {
     Q_D(const QuantitySpinBox);
-
     QValidator::State state;
     d->validateAndInterpret(text, pos, state);
     return state;