sw: WW8 export: remove WW6 export, part9: bWrtWW8 in wrtww8gr.cxx
sw: WW8 export: remove WW6 export, part9: bWrtWW8 in wrtww8gr.cxx

Change-Id: I5bc347e19c7eb76693e94bafeef42b8ceb92990f

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core