Drop unused enum LATHE_PART

Change-Id: If06ee75ff6832199079b1f175f09e59a94fecf58
Reviewed-on: https://gerrit.libreoffice.org/25790Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

include/svx/lathe3d.hxx

@@ -36,8 +36,6 @@
 class SVX_DLLPUBLIC E3dLatheObj : public E3dCompoundObject
 {
 private:
-    // Part codes for Wireframe generation: standard oder cover surface
-    enum { LATHE_PART_STD = 1, LATHE_PART_COVER = 2 };
     basegfx::B2DPolyPolygon maPolyPoly2D;
 
  protected: