VSeriesPlotter cleanup.
VSeriesPlotter cleanup.

Change-Id: Ie9a2fa2a241826581eb799bafa796c54d558d976

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