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/unsend/template.yml

@@ -1,28 +0,0 @@
-variables:
-  main_domain: ${domain}
-  secret_base: ${base64:64}
-
-config:
-  domains:
-    - serviceName: unsend
-      port: 3000
-      host: ${main_domain}
-
-  env:
-    REDIS_URL: "redis://unsend-redis-prod:6379"
-    POSTGRES_USER: "postgres"
-    POSTGRES_PASSWORD: "postgres"
-    POSTGRES_DB: "unsend"
-    DATABASE_URL: "postgresql://postgres:postgres@unsend-db-prod:5432/unsend"
-    NEXTAUTH_URL: "http://localhost:3000"
-    NEXTAUTH_SECRET: ${secret_base}
-    GITHUB_ID: "'Fill'"
-    GITHUB_SECRET: "'Fill'"
-    AWS_DEFAULT_REGION: "us-east-1"
-    AWS_SECRET_KEY: "'Fill'"
-    AWS_ACCESS_KEY: "'Fill'"
-    DOCKER_OUTPUT: "1"
-    API_RATE_LIMIT: "1"
-    DISCORD_WEBHOOK_URL: ""
-
-  mounts: []