diff --git a/xmloff/source/transform/OOo2Oasis.cxx b/xmloff/source/transform/OOo2Oasis.cxx
index 38ff3384a40b..a11baa98a8e9 100644
--- a/xmloff/source/transform/OOo2Oasis.cxx
+++ b/xmloff/source/transform/OOo2Oasis.cxx
@@ -1950,18 +1950,6 @@ void OOo2OasisTransformer::Initialize(
     }
 }
 
-const css::uno::Sequence<sal_Int8>& OOo2OasisTransformer::getUnoTunnelId() noexcept
-{
-    static const comphelper::UnoIdInit theOOo2OasisTransformerUnoTunnelId;
-    return theOOo2OasisTransformerUnoTunnelId.getSeq();
-}
-
-// XUnoTunnel
-sal_Int64 SAL_CALL OOo2OasisTransformer::getSomething( const Sequence< sal_Int8 >& rId )
-{
-    return comphelper::getSomethingImpl(rId, this);
-}
-
 // XServiceInfo
 OUString SAL_CALL OOo2OasisTransformer::getImplementationName()
 {
diff --git a/xmloff/source/transform/OOo2Oasis.hxx b/xmloff/source/transform/OOo2Oasis.hxx
index 01c5d72b38c3..3d7fb89c524c 100644
--- a/xmloff/source/transform/OOo2Oasis.hxx
+++ b/xmloff/source/transform/OOo2Oasis.hxx
@@ -77,10 +77,6 @@ public:
     // XTypeProvider
     virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
 
-    // XUnoTunnel
-    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
-    virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& aIdentifier ) override;
-
     // XImporter
     virtual void SAL_CALL setTargetDocument( const css::uno::Reference< css::lang::XComponent >& xDoc ) override;
 
diff --git a/xmloff/source/transform/Oasis2OOo.cxx b/xmloff/source/transform/Oasis2OOo.cxx
index 7a74d2ab4f61..4f32bf894137 100644
--- a/xmloff/source/transform/Oasis2OOo.cxx
+++ b/xmloff/source/transform/Oasis2OOo.cxx
@@ -1943,18 +1943,6 @@ Oasis2OOoTransformer::~Oasis2OOoTransformer() noexcept
     XMLEventOASISTransformerContext::FlushEventMap( m_pFormEventMap );
 }
 
-const css::uno::Sequence<sal_Int8>& Oasis2OOoTransformer::getUnoTunnelId() noexcept
-{
-    static const class comphelper::UnoIdInit theOasis2OOoTransformerUnoTunnelId;
-    return theOasis2OOoTransformerUnoTunnelId.getSeq();
-}
-
-// XUnoTunnel
-sal_Int64 SAL_CALL Oasis2OOoTransformer::getSomething( const Sequence< sal_Int8 >& rId )
-{
-    return comphelper::getSomethingImpl(rId, this);
-}
-
 // XServiceInfo
 OUString SAL_CALL Oasis2OOoTransformer::getImplementationName()
 {
diff --git a/xmloff/source/transform/Oasis2OOo.hxx b/xmloff/source/transform/Oasis2OOo.hxx
index fe3db7ceafa8..fe41b427b6d6 100644
--- a/xmloff/source/transform/Oasis2OOo.hxx
+++ b/xmloff/source/transform/Oasis2OOo.hxx
@@ -48,10 +48,6 @@ public:
     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
 
-    // XUnoTunnel
-    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
-    virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& aIdentifier ) override;
-
     virtual OUString GetEventName( const OUString& rName,
                                              bool bForm = false ) override;
 };
diff --git a/xmloff/source/transform/Transformer.hxx b/xmloff/source/transform/Transformer.hxx
index 84647a5b49db..1c7569350c8f 100644
--- a/xmloff/source/transform/Transformer.hxx
+++ b/xmloff/source/transform/Transformer.hxx
@@ -20,7 +20,6 @@
 #pragma once
 
 #include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
-#include <com/sun/star/lang/XUnoTunnel.hpp>
 #include <com/sun/star/lang/XInitialization.hpp>
 #include <com/sun/star/lang/XServiceInfo.hpp>
 #include <cppuhelper/implbase.hxx>
@@ -28,8 +27,7 @@
 class XMLTransformer : public ::cppu::WeakImplHelper<
              css::xml::sax::XExtendedDocumentHandler,
              css::lang::XServiceInfo,
-             css::lang::XInitialization,
-             css::lang::XUnoTunnel>
+             css::lang::XInitialization>
 {
 };