Path: Remove first-draft rotational code Path

Remove all first-draft rotational-related code from Path workbench to make way for more stable, long-term integration of a rotational indexing capability.

src/Mod/Path/PathScripts/PathThreadMilling.py

@@ -195,12 +195,6 @@ class ObjectThreadMilling(PathCircularHoleBase.ObjectOp):
         obj.addProperty("App::PropertyLink", "ClearanceOp", "Operation", QtCore.QT_TRANSLATE_NOOP("PathThreadMilling", "Operation to clear the inside of the thread"))
         obj.Direction = self.Directions
 
-        # Rotation related properties
-        if not hasattr(obj, 'EnableRotation'):
-            obj.addProperty("App::PropertyEnumeration", "EnableRotation", "Rotation", QtCore.QT_TRANSLATE_NOOP("App::Property", "Enable rotation to gain access to pockets/areas not normal to Z axis."))
-            obj.EnableRotation = ['Off', 'A(x)', 'B(y)', 'A & B']
-
-
     def threadStartDepth(self, obj):
         if obj.ThreadOrientation == self.RightHand:
             if obj.Direction == self.DirectionClimb: