Revert "setup: Changing task cleaner utility to also handle removal of commands"

This reverts commit a5462c7356b90b1465e05f4bb84f63a0005892bc.

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1167769
Change-Id: I5f08ff501606d06907704b60c57e950837d4e162
Signed-off-by: Yair Zaslavsky <yzaslavs@redhat.com>