chore: remove root docker-compose and redundant env example note

Drop fork-local compose file not needed upstream; keep .env.selfhost.example
aligned with existing AWS vars only.

Made-with: Cursor

Author: amanjuman

.env.selfhost.example

@@ -27,7 +27,6 @@ GOOGLE_CLIENT_SECRET="<your-google-client-secret>"
 
 # AWS details - required
 AWS_DEFAULT_REGION="us-east-1"
-# Custom tracking HTTPS: configure per domain in the dashboard (toggle when adding the tracking hostname).
 AWS_SECRET_KEY="<your-aws-secret-key>"
 AWS_ACCESS_KEY="<your-aws-access-key>"