Revert "put filename into msgctxt, because po entries must be unique"
Revert "put filename into msgctxt, because po entries must be unique"

This reverts commit 889574a50c8f5bdffed9f3eb70426cedae0a589c.

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