On live hosts, always mount files/db into PHP container for MySQL dumps

templates/docker-compose.yml.twig

@@ -90,10 +90,8 @@ services:
       - {{ projectroot }}/drush:/etc/drush
 {% if drupal.live|default(0) %}
       - {{ projectrootfiles }}:/data/default
-{% if crontabs.enable_mysql_backup|default(0) %}
       - {{ projectrootfiles }}/db:/var/backups/mysql
 {% endif %}
-{% endif %}
 {% if php.ssh and not drupal.live|default(0) %}
       - {{ php.ssh_auth_sock }}:/ssh-agent
 {% endif %}