Remove Ansible playbooks and roles

tools/ansible/requirements.yml

@@ -1,27 +0,0 @@
----
-- name: ansistrano.deploy
-  version: 3.4.0
-- name: ansistrano.rollback
-  version: 3.0.0
-- name: geerlingguy.certbot
-  version: 3.0.3
-- name: geerlingguy.composer
-  version: 1.9.0
-- name: geerlingguy.firewall
-  version: 2.5.0
-- name: geerlingguy.mysql
-  version: 3.3.0
-- name: geerlingguy.nginx
-  version: 2.7.0
-- name: geerlingguy.nodejs
-  version: 5.1.1
-- name: geerlingguy.php
-  version: 3.7.0
-- name: geerlingguy.php-mysql
-  version: 2.1.0
-- name: geerlingguy.php-versions
-  version: 4.0.2
-- name: geerlingguy.security
-  version: 2.0.1
-- name: opdavies.drupal_settings_files
-  version: 0.1.0