inherit SdTransferable from TransferDataContainer instead of TransferableHelper

Change-Id: I0c3628e5e280e8060f0e6890902253ad455d6293
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89363
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sd/source/ui/inc/sdxfer.hxx b/sd/source/ui/inc/sdxfer.hxx
index bebbcd2..0e40bd06 100644
--- a/sd/source/ui/inc/sdxfer.hxx
+++ b/sd/source/ui/inc/sdxfer.hxx
@@ -37,7 +37,7 @@ class DrawDocShell;
class View;
}

class SAL_DLLPUBLIC_RTTI SdTransferable : public TransferableHelper, public SfxListener
class SAL_DLLPUBLIC_RTTI SdTransferable : public TransferDataContainer, public SfxListener
{
public: