installer::worker: Remove unused GNU cp variables.
installer::worker: Remove unused GNU cp variables.

Change-Id: I9b798ee769646428dab24837e4b85620472ad0ef

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