remove unused logic

manifests/params.pp

@@ -13,7 +13,6 @@ class docker::params {
   $dns                          = undef
   case $::osfamily {
     'Debian': { $package_source_location = 'https://get.docker.io/ubuntu' }
-    'RedHat': { $package_source_location = '' }
     default:  { $package_source_location = '' }
   }
 }