Remove DNS-O-Matic from managing-dynamic-ip-addresses (#21096)

Author: RebeccaTamachiro

src/content/docs/dns/manage-dns-records/how-to/managing-dynamic-ip-addresses.mdx

@@ -14,15 +14,4 @@ Create a script to monitor IP address changes and then have that script push cha
 
 ## ddclient
 
-[ddclient](https://github.com/ddclient/ddclient) is a third-party Perl client used to update dynamic DNS entries for accounts on various DNS providers.
-
-## DNS-O-Matic
-
-[DNS-O-Matic](https://dnsomatic.com/docs/) is a third-party tool that announces dynamic IP changes to multiple services.
-
-Configuration of DNS-O-Matic requires the following information:
-
-* **Email**: `<CLOUDFLARE ACCOUNT EMAIL ADDRESS>` (associated account must have sufficient privileges to manage DNS)
-* **API Token**: `<CLOUDFLARE GLOBAL API KEY>` (for details refer to [API Keys](/fundamentals/api/get-started/keys/))
-* **Domain**: `<example.com>`
-* **Hostname**: *dynamic*
+[ddclient](https://github.com/ddclient/ddclient) is a third-party Perl client used to update dynamic DNS entries for accounts on various DNS providers.