Fix fdo#45177 - avoid linked undo for the while.

While I try to wrap head around subtleties for linked undo in
Impress outline view, disable that here for the while. Better than
a crash for sure.

sd/source/ui/view/outlview.cxx

@@ -1664,12 +1664,6 @@ void OutlineView::EndModelChange()
 
     DBG_ASSERT( bHasUndoActions == (mrOutliner.GetUndoManager().GetUndoActionCount() != 0), "sd::OutlineView::EndModelChange(), undo actions not in sync!" );
 
-    if( bHasUndoActions )
-    {
-        SfxLinkUndoAction* pLink = new SfxLinkUndoAction(pDocUndoMgr);
-        mrOutliner.GetUndoManager().AddUndoAction(pLink);
-    }
-
     mrOutliner.GetUndoManager().LeaveListAction();
 
     if( bHasUndoActions && mrOutliner.GetEditEngine().HasTriedMergeOnLastAddUndo() )