The active components that you need to remove are:
1. The sidecar injector webhook
2. The Istio validating webhook
3. The Istio control plane deployment(s)
These components are the Kubernetes resources that actively make changes to the cluster state.
NOTE
The safest route for removal is to remove both webhooks before removing their
deployments to avoid any side effects where the webhooks are invoked by accident.
Continue with the following instructions to perform these removals.