QmlDesigner: Allow building the fallback puppet in QDS

This allows supporting a puppet with Qt 6 built.
In later versions we should remove this again.

Change-Id: Ia5b0a34ab3fb071e895e88e5086749ba499ef63f
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/settingspage.cpp

@@ -249,7 +249,6 @@ void SettingsPageWidget::setSettings(const DesignerSettings &settings)
         DesignerSettingsKey::ENABLE_TIMELINEVIEW).toBool());
 
     if (settings.value(DesignerSettingsKey::STANDALONE_MODE).toBool()) {
-        m_ui.emulationGroupBox->hide();
         m_ui.debugGroupBox->hide();
         m_ui.featureTimelineEditorCheckBox->hide();
     }