fdo#66701 - don't double destroy the HASH when PDF signing.
fdo#66701 - don't double destroy the HASH when PDF signing.

Accidentally introduced in d73c039fa it seems.

Change-Id: I846314ebca3a24520492887d4d9027f812cfb32f

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