Fixes #28042 - remove ansible-playbook option (theforeman#306)

app/models/foreman_ansible/ansible_provider.rb

@@ -59,7 +59,7 @@ def supports_effective_user?
         end
 
         def proxy_operation_name
-          Setting::Ansible[:ansible_implementation]
+          'ansible-runner'
         end
 
         private

app/models/setting/ansible.rb

@@ -80,16 +80,6 @@ def load_defaults
               false,
               format(N_('%{cfgmgmt} out of sync disabled'),
                      :cfgmgmt => 'Ansible')
-            ),
-            set(
-              'ansible_implementation',
-              N_('Foreman will run Ansible playbooks using this implementation'),
-              'ansible-runner',
-              N_('Implementation for running Ansible'),
-              nil,
-              :collection => lambda do
-                Hash[%w[ansible-runner ansible-playbook].map { |x| [x, x] }]
-              end
             )
           ].compact.each do |s|
             create(s.update(:category => 'Setting::Ansible'))

db/migrate/20191010074208_remove_ansible_implementation_setting.rb

@@ -0,0 +1,5 @@
+class RemoveAnsibleImplementationSetting < ActiveRecord::Migration[5.2]
+  def up
+    Setting.where(:name => 'ansible_implementation').destroy_all
+  end
+end