[Gui] DlgSettings etc.: remove unused includes

src/Gui/DlgSettingsNavigation.cpp

@@ -20,30 +20,27 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 
 #ifndef _PreComp_
 # include <QApplication>
 # include <QDoubleSpinBox>
-# include <QRegExp>
 # include <QGridLayout>
-# include <QMessageBox>
 # include <memory>
 #endif
 
+#include <App/Application.h>
+#include <Base/Parameter.h>
+#include <Base/Tools.h>
+
 #include "DlgSettingsNavigation.h"
 #include "ui_DlgSettingsNavigation.h"
 #include "MainWindow.h"
 #include "NavigationStyle.h"
-#include "PrefWidgets.h"
 #include "View3DInventor.h"
 #include "View3DInventorViewer.h"
 #include "ui_MouseButtons.h"
-#include <App/Application.h>
-#include <Base/Console.h>
-#include <Base/Parameter.h>
-#include <Base/Tools.h>
+
 
 using namespace Gui::Dialog;