refactor: remove deprecated YAML template files

- Deleted all 'template.yml' files from various blueprints as part of the transition to TOML format.
- Updated the script to delete the 'template.yml' files instead of converting them to 'template.toml'.

blueprints/directus/template.yml

@@ -1,16 +0,0 @@
-variables:
-  main_domain: ${domain}
-  directus_secret: ${base64:64}
-  database_password: ${password}
-
-config:
-  domains:
-    - serviceName: directus
-      port: 8055
-      host: ${main_domain}
-
-  env:
-    - DATABASE_PASSWORD=${database_password}
-    - DIRECTUS_SECRET=${directus_secret}
-
-  mounts: []