Remove controller-runtime package in pkg/apis package

[XudongLiuHarold]

Hi team, can we remove the controller-runtime dependency in NSX Operator APIs: https://github.com/vmware-tanzu/nsx-operator/blob/main/pkg/apis/go.mod#L8?

Because vSphere CPI wants to catch up with new k8s releases faster in future, we are working on removing controller-runtime dependency because it can't release in-time with the new k8s release.

vSphere CPI now is leveraging the NSX APIs and we found that NSX APIs also have the dependency on controller-runtime, therefore, we hope that NSX API can also remove that dependency.

Just removing this dependency on API package should be good enough for vSphere CPI, the main module can be untouched.