Fix warning: unused variable 'PROP_LAYOUT_MANAGER' [loplugin]
Fix warning: unused variable 'PROP_LAYOUT_MANAGER' [loplugin]

Change-Id: Ifd475718766a772504da9e522894b90d7e63347a

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