Remove PodSecurityPolicy
PodSecurityPolicy was deprecated in Kubernetes v1.21, and removed from Kubernetes in v1.25.[1]
In Kubernetes 1.21, PodSecurityPolicy is deprecated. As with all Kubernetes feature deprecations, PodSecurityPolicy will continue to be available and fully-functional for several more releases. PodSecurityPolicy, previously in the beta stage, is planned for removal in Kubernetes 1.25.[2]
[1] https://kubernetes.io/docs/concepts/security/pod-security-policy/
[2] https://kubernetes.io/blog/2021/04/08/kubernetes-1-21-release-announcement/#podsecuritypolicy-deprecation
Change-Id: Ic060d925b6e97e5651e74a1a1161906aef740a8c