Moved pretalx vagrant file and remove meta

roles/pretalx/meta/main.yml

@@ -1,23 +0,0 @@
----
-galaxy_info:
-  namespace: pretalx
-  role_name: pretalx
-  author: Tobias Kunze
-  description: Ansible role to install pretalx in a production environment
-  company: pretalx
-  issue_tracker_url: https://github.com/pretalx/ansible-pretalx
-  license: Apache
-  min_ansible_version: "2.4"
-  galaxy_tags:
-    - pretalx
-    - conference
-    - schedule
-    - program
-    - cfp
-  platforms:
-    - name: ArchLinux
-      versions:
-        - all
-    - name: Debian
-      versions:
-        - bullseye