refactor: remove lowcoder template YAML file

- Deleted the 'template.yml' file from the lowcoder blueprint as part of the transition to TOML format.

blueprints/lowcoder/template.yml

@@ -1,20 +0,0 @@
-variables:
-  main_domain: ${domain}
-  encryption_password: ${password:32}
-  encryption_salt: ${password:32}
-  api_secret: ${password:32}
-
-config:
-  domains:
-    - serviceName: lowcoder-api-service
-      port: 3000
-      host: ${main_domain}
-
-  env:
-    ENABLE_USER_SIGN_UP: "false"
-    ENCRYPTION_PASSWORD: ${encryption_password}
-    ENCRYPTION_SALT: ${encryption_salt}
-    CORS_ALLOWED_DOMAINS: "*"
-    LOWCODER_API_KEY_SECRET: ${api_secret}
-
-  mounts: []