kubeadmin login supposed to be working once the secret is removed after adding IDP and added back later when removing IDP in HCP cluster 

1. Added idp for hcp cluster as documented here https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html-single/hosted_control_planes/index#authentication-and-authorization-for-hosted-control-planes

2. Which says kubeadmin will be removed. But if for some reason customer had to remove IDP, it doesn't revert back kubeadmin login. Even though the secret for kubeadmin gets created back but the login does not work.

3. Customer confirmed that password remains the same but it doesn't work after secret recreation.

    Kubeadmin user should able to login once IDP is removed and secret is get added back.