Remove TODO from mysql.yml

#297 is closed to there's no need for the TODO to remain in the file.

Author: jervfors

includes/provisioning/tasks/mysql.yml

@@ -10,7 +10,6 @@
     host: localhost
     state: present
 
-# TODO: See https://github.com/geerlingguy/ansible-for-devops/issues/297
 - name: Create a MySQL user for Drupal.
   mysql_user:
     name: "{{ domain }}"