SvxGraphicObject: remove more manual swap out calls
SvxGraphicObject: remove more manual swap out calls

Tested with importing large *.rtf and *.docx test documents
with lots of images -> auto swapp out works.

Change-Id: Ib040edaa89c9bcb966c58b75f0392e6d9f7a165e

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