dbaccess: avoid exceptions during loading embedded data sources
dbaccess: avoid exceptions during loading embedded data sources

Situation before/after the patch is the same, just silence lots of
harmless warnings for now.

Change-Id: I00428bdfd939d8cdd3bfd447339e0417e70f4689

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