Currently feature development is no longer accepted in k8s.io/kubernetes/staging/src/k8s.io/legacy-cloud-providers/<provider>.
The cloud-provider-gcp/providers directory is to support further development for in-tree cloud provider gce.
cloud-provider-gcp/providers/gce will contain the files moved from k8s.io/kubernetes/staging/src/k8s.io/legacy-cloud-providers/gce. And cloud-provider-gcp/providers will
be released separately.
Later, k8s.io/kubernetes will switch the dependency from k8s.io/legacy-cloud-providers/gce to cloud-provider-gcp/providers. k8s.io/legacy-cloud-providers/gce will be deleted.
After the dependency switch completed, the feature development will continue in cloud-provider-gcp/providers.