Remove code committed involuntarily.

Follow-up of a7da5945

Change-Id: I7e252f9a881b2ac1098bc21bd193f66d32404056
Reviewed-on: https://gerrit.libreoffice.org/67423
Tested-by: Jenkins
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

xmloff/source/core/xmlexp.cxx

@@ -1912,9 +1912,6 @@ bool SvXMLExport::AddEmbeddedXGraphicAsBase64(uno::Reference<graphic::XGraphic>
                 XMLBase64Export aBase64Exp(*this);
                 return aBase64Exp.exportOfficeBinaryDataElement(xInputStream);
             }
-
-            XMLBase64Export aBase64Exp(*this);
-            return aBase64Exp.exportOfficeBinaryDataElement(xInputStream);
         }
     }