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/hi-events/template.yml

@@ -1,27 +0,0 @@
-variables:
-  main_domain: ${domain}
-  postgres_password: ${password}
-  jwt_secret: ${password}
-  app_key: ${password}
-
-config:
-  domains:
-    - serviceName: all-in-one
-      port: 80
-      host: ${main_domain}
-
-  env:
-    - DOMAIN=${main_domain}
-    - POSTGRES_DB=hievents
-    - POSTGRES_USER=hievents
-    - POSTGRES_PASSWORD=${postgres_password}
-    - VITE_STRIPE_PUBLISHABLE_KEY=
-    - APP_KEY=${app_key}
-    - JWT_SECRET=${jwt_secret}
-    - MAIL_MAILER=
-    - MAIL_HOST=
-    - MAIL_PORT=
-    - MAIL_FROM_ADDRESS=
-    - MAIL_FROM_NAME=
-
-  mounts: []