[Sketch] App P - End: remove unused headers

- also some sorting

src/Mod/Sketcher/App/SketchPyImp.cpp

@@ -23,19 +23,14 @@
 #include "PreCompiled.h"
 
 #include <Base/VectorPy.h>
-
-#include <Mod/Part/App/Geometry.h>
 #include <Mod/Part/App/GeometryCurvePy.h>
 #include <Mod/Part/App/TopoShapePy.h>
-#include <CXX/Objects.hxx>
-
-#include "Sketch.h"
-#include "Constraint.h"
-#include "ConstraintPy.h"
 
 // inclusion of the generated files (generated out of SketchPy.xml)
 #include "SketchPy.h"
 #include "SketchPy.cpp"
+#include "ConstraintPy.h"
+
 
 using namespace Sketcher;
 using namespace Part;