Remove unused parameter REGISTRYURL in build

[stonezdj]

The REGISTRYURL is not used anymore.

and the URL related to https://storage.googleapis.com should be removed because previous Google storage account is removed

[Aamir017]

Hi team,

I noticed that the REGISTRYURL environment variable (pointing to https://storage.googleapis.com/harbor-builds/bin/registry/release-v2.8.3-patch-redis/registry) is no longer used in the build. Since the related Google storage account has also been removed, can you please confirm if it’s safe to delete this unused parameter and its URL reference?

If confirmed, could you please assign me to issue #22333 so I can submit a cleanup PR?

Thanks! 🙏