Some simplifications, using UNO_QUERY_THROW

Change-Id: Ie82c1f243717eb42218040a9b4d59f8cf10de387
Reviewed-on: https://gerrit.libreoffice.org/34251Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

xmloff/source/core/RDFaExportHelper.cxx

@@ -90,9 +90,7 @@ RDFaExportHelper::RDFaExportHelper(SvXMLExport & i_rExport)
     : m_rExport(i_rExport), m_xRepository(nullptr), m_Counter(0)
 {
     const uno::Reference<rdf::XRepositorySupplier> xRS( m_rExport.GetModel(),
-            uno::UNO_QUERY);
-    OSL_ENSURE(xRS.is(), "AddRDFa: model is no rdf::XRepositorySupplier");
-    if (!xRS.is()) throw uno::RuntimeException();
+            uno::UNO_QUERY_THROW);
     m_xRepository.set(xRS->getRDFRepository(), uno::UNO_QUERY_THROW);
 }