chore: remove deprecated compose

examples/cloudflare-ddns/docker-compose-oznu-deprecated.yml

@@ -1,9 +0,0 @@
-version: '3.7'
-services:
-  ddns:
-    image: oznu/cloudflare-ddns:latest
-    restart: unless-stopped
-    environment:
-    - API_KEY=MyCloudflareApiToken # change this
-    - ZONE=example.com
-    - SUBDOMAIN=* # either subdomain or wildcard * to update root domain