coverity#705734: Resource leak

Change-Id: I04eba87de232958650c649c6ec18acb6b699b0ff
Reviewed-on: https://gerrit.libreoffice.org/2689Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

svx/source/xml/xmlxtexp.cxx

@@ -407,6 +407,7 @@ bool SvxXMLXTableExportComponent::exportTable() throw()
                 aAny = mxTable->getByName( *pNames );
                 pExporter->exportEntry( *pNames, aAny );
             }
+            delete pExporter;
 
             bRet = true;
         }