* using AUTOREV causes undeterministic builds when it might start failing
even when nothing was changed in the metadata
* it also forces bitbake to run git ls-remote on the github repo every
single time when the recipe is parsed and fails to build when doing builds
without network access (from pre-populated premirror)
* hydro-devel branch wasn't updated for last 3 years and there are only 73
commits in it, so AUTOREV wasn't really useful anyway
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>