history: fixed etl-update users delete date

fixed bug that delete date of user did not
update in the history db.

Change-Id: I49726c2302f1fbd5b1697defcb941b790503a87c
Bug-Url: https://bugzilla.redhat.com/1124458
Signed-off-by: Shirly Radco <sradco@redhat.com>