[Gui] Selection: remove unused includes

src/Gui/SelectionObjectPyImp.cpp

@@ -22,17 +22,18 @@
 
 #include "PreCompiled.h"
 
-#include "SelectionObject.h"
-#include "Selection.h"
-#include <Base/GeometryPyCXX.h>
-#include <App/Document.h>
 #include <App/DocumentObject.h>
-#include <App/Application.h>
+#include <Base/GeometryPyCXX.h>
+
+#include "Selection.h"
+#include "SelectionObject.h"
+
 
 // inclusion of the generated files (generated out of SelectionObjectPy.xml)
 #include "SelectionObjectPy.h"
 #include "SelectionObjectPy.cpp"
 
+
 using namespace Gui;
 
 // returns a string which represents the object e.g. when printed in python