ENH: Avoid explicit calls to OGRVersionProxy member types

Modules/Applications/AppSegmentation/app/otbSegmentation.cxx

@@ -675,10 +675,8 @@ private:
        //and recomputed FID for each features (without holes).
         //Note : the GetDriver() Method has not been encapsulated in otb::ogr::DataSource,
         //so we must access the OGR pointer by using .ogr()
-        
-        otb::OGRVersionProxy::GDALDatasetType & gdalDS = ogrDS->ogr();
-        otb::OGRVersionProxy::GDALDriverType * gdalDriver = gdalDS.GetDriver();
-        std::string driverName(gdalDriver->GetName());
+
+        std::string driverName(ogrDS->ogr().GetDriver()->GetName());
        if ( driverName.find("ESRI Shapefile") != std::string::npos)
          {
            otbAppLogINFO(<<"REPACK the Shapefile ..."<<std::endl);