Removed api-int from the required list of dns records.

[arjuhe]

@novacain1 pointed this out when creating dns reqords for the pinto test lab. It can be seen in the assisted installer documentation.

https://access.redhat.com/documentation/en-us/assisted_installer_for_openshift_container_platform/2022/html/assisted_installer_for_openshift_container_platform/preparing-to-install-with-ai#networking

I've gone back and audited previous versions of OCP to find which versions had this requirement and I can't find one that ever did.	OCP	api	*.apps	api-int
4.14	YES	YES	NO
4.13	YES	YES	NO
4.12	YES	YES	NO
4.11	YES	YES	NO
4.10	YES	YES	NO
4.9	YES	YES	NO
4.8	YES	YES	NO
4.7	NA	NA	NA

[arjuhe]

@nocturnalastro This change looks pretty safe to remove.

[arjuhe]

Closing pull request as project is being archived.