As a continuation of https://github.com/openshift/machine-config-operator/pull/2547, we should consider the following:

1. revert https://github.com/openshift/machine-config-operator/pull/2517 as it is no longer needed
2. As part of that, there is a reverse race condition where the MCO sometimes generates 1 extra useless rendered config. Consider making kubeletconfig ready before generating rendered config
3. Improve the same behaviour for containerruntimeconfigs (bootstrap supported today but likely very buggy)
   1. As part of that, make sure bootstrap ISCP objects are handled correctly. See: https://bugzilla.redhat.com/show_bug.cgi?id=1899750

To improve behaviour of Kubelet/containerruntime configs. There are also longer term improvement considerations, such as consolidating the behaviour of KC/CRC and MCs (e.g. alphanumeric ordering, custom pools).