Instead of excluding the hash specifically for the custom tarball and
custom version cases, exclude it always except in the one case where
we do have a hash: the latest version.
This simplifies the code a little because soon we will add hash checks
for git as well, so we also need an exclusion in that case.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>