[redhat] Update variables to be version agnostic

The RedHat-based operating systems such as CentOS have a pretty
stable list of packages, therefore, we don't need to pin it by
version and we can instead move to a much more generic redhat.yml
which will support a bigger range of systems.

Change-Id: I3a71da978f74e02a1adc022f73a4eac1285be950
This commit is contained in:
Mohammed Naser 2019-05-10 00:45:22 -04:00 committed by Dmitriy Rabotyagov
parent 9f06d548ab
commit ce3cfff4d6