cleanup fixtures

leaving firewall and postgres pinned for now because they are a
hard requirement until the code is updated.

Author: h0tw1r3

.fixtures.yml

@@ -5,21 +5,15 @@ fixtures:
     stdlib: 'https://github.com/puppetlabs/puppetlabs-stdlib.git'
     apt: 'https://github.com/puppetlabs/puppetlabs-apt.git'
     concat: 'https://github.com/puppetlabs/puppetlabs-concat.git'
-    file_concat: 'https://github.com/electrical/puppet-lib-file_concat.git'
     systemd: 'https://github.com/camptocamp/puppet-systemd.git'
-    cron: 'https://github.com/voxpupuli/puppet-cron.git'
     provision: 'https://github.com/puppetlabs/provision.git'
     puppet_agent: 'https://github.com/puppetlabs/puppetlabs-puppet_agent.git'
     facts: 'https://github.com/puppetlabs/puppetlabs-facts.git'
-    cron_core:
-      repo: https://github.com/puppetlabs/puppetlabs-cron_core.git
-      puppet_version: ">= 6.0.0"
-    yumrepo_core:
-      repo: https://github.com/puppetlabs/puppetlabs-yumrepo_core.git
-      puppet_version: ">= 6.0.0"
-    augeas_core:
-      repo: https://github.com/puppetlabs/puppetlabs-augeas_core.git
-      puppet_version: ">= 6.0.0"
+    cron_core: 'https://github.com/puppetlabs/puppetlabs-cron_core.git'
+    yumrepo_core: 'https://github.com/puppetlabs/puppetlabs-yumrepo_core.git'
+    augeas_core: 'https://github.com/puppetlabs/puppetlabs-augeas_core.git'
+    postgresql: 'https://github.com/puppetlabs/puppetlabs-postgresql.git'
+    firewall: 'https://github.com/puppetlabs/puppetlabs-firewall.git'
   forge_modules:
     postgresql:
       repo: 'puppetlabs/postgresql'