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/wikijs/template.yml

@@ -1,23 +0,0 @@
-variables:
-  main_domain: ${domain}
-
-config:
-  domains:
-    - serviceName: wiki
-      port: 3000
-      host: ${main_domain}
-
-  env:
-    # Database Setup
-    POSTGRES_USER: "wikijs"
-    POSTGRES_PASSWORD: "wikijsrocks"
-    POSTGRES_DB: "wiki"
-    # WikiJS Database Connection
-    DB_TYPE: "postgres"
-    DB_HOST: "db"
-    DB_PORT: "5432"
-    DB_USER: "wikijs"
-    DB_PASS: "wikijsrocks"
-    DB_NAME: "wiki"
-
-  mounts: []