[Mesh] Gui: A-P: remove unused includes

- also some sorting

src/Mod/Mesh/Gui/DlgRegularSolidImp.cpp

@@ -20,30 +20,26 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 
 #ifndef _PreComp_
 # include <cfloat>
-# include <qcheckbox.h>
-# include <qcombobox.h>
 # include <qmessagebox.h>
 #endif
 
-#include <Base/PyObjectBase.h>
-#include <Base/Interpreter.h>
-#include <Base/UnitsApi.h>
 #include <App/Document.h>
+#include <Base/Interpreter.h>
+#include <Base/PyObjectBase.h>
+#include <Base/UnitsApi.h>
 #include <Gui/Application.h>
 #include <Gui/Command.h>
 #include <Gui/Document.h>
-#include <Gui/MainWindow.h>
-#include <Gui/PrefWidgets.h>
 #include <Gui/WaitCursor.h>
 
 #include "DlgRegularSolidImp.h"
 #include "ui_DlgRegularSolid.h"
 
+
 using namespace MeshGui;
 
 /* TRANSLATOR MeshGui::DlgRegularSolidImp */