remove unused OBJ_DUMMY from SdrObjKind enum

Change-Id: I953c81cf477fddf0f136b3b03a6682c962850deb
Reviewed-on: https://gerrit.libreoffice.org/34471Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/svx/svdobj.hxx

@@ -131,7 +131,6 @@ enum SdrObjKind {
     OBJ_PATHPLIN   =27,  /// Polyline represented by SdrPathObj
     OBJ_PAGE       =28,  /// object that represents a SdrPage
     OBJ_MEASURE    =29,  /// measurement object
-    OBJ_DUMMY      =30,  /// dummy object for saving holes (to recover surrogates later)
     OBJ_FRAME      =31,  /// continuously activated OLE (PlugIn-Frame or similar)
     OBJ_UNO        =32,  /// Universal Network Object packed into SvDraw object
     OBJ_CUSTOMSHAPE=33,  /// custom shape

svx/source/svdraw/svdedxv.cxx

@@ -2179,7 +2179,6 @@ bool SdrObjEditView::SupportsFormatPaintbrush( SdrInventor nObjectInventor, sal_
             return true;
         case OBJ_PAGE:
         case OBJ_MEASURE:
-        case OBJ_DUMMY:
         case OBJ_FRAME:
         case OBJ_UNO:
             return false;