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/cloudflared/template.yml

@@ -1,9 +0,0 @@
-variables: {}
-
-config:
-  domains: []
-
-  env:
-    - CLOUDFLARE_TUNNEL_TOKEN="<INSERT TOKEN>"
-
-  mounts: []