remove packages that are unnecessary for katello-engine
Merge pull request #3521 from jmontleon/fix-katello-deps

remove packages that are unnecessary for katello engine
Adding missing less-rails dependency and removing katello-common which is
no longer built or required.
Merge pull request #3526 from ehelms/build-updates

Adding missing less-rails dependency and removing katello-common which i...
Build: Removing rubygem-logger since that appears to be unused, adding
ruby193-ruby-wrapper to RHEL6 comps and missing commonjs for less-rails.
Merge pull request #3528 from ehelms/build-updates

Build: Removing rubygem-logger since that appears to be unused, adding