[Robot] App: remove unused includes

- also some sorting

src/Mod/Robot/App/WaypointPyImp.cpp

@@ -20,22 +20,16 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 
-
 #include <Base/PlacementPy.h>
-#include <Base/Placement.h>
-#include <Base/Exception.h>
 #include <Base/UnitsApi.h>
 
-#include "Mod/Robot/App/Waypoint.h"
-
-
 // inclusion of the generated files (generated out of WaypointPy.xml)
 #include "WaypointPy.h"
 #include "WaypointPy.cpp"
 
+
 using namespace Robot;
 using namespace Base;