bug: the net-istio documentation is outdated in the case of the knative operator.

## Expected Behavior

net-istio components works as expected

## Actual Behavior

After applying the knative serving resource using the knative operator and deploying the net-istio components, two replicasets are created for the net-istio controller and net-istio webhook components.

## Steps to Reproduce the Problem

1. Install knative-operator
2. [Install Serving resource in `knative-serving` namespace](https://knative.dev/docs/install/operator/configuring-serving-cr/#configure-the-knative-serving-version)
3. [Install istio network layer ](https://knative.dev/docs/install/installing-istio/)
4. kubectl -n knative-serving get replicaset
```bash
$ kubectl -n knative-serving get replicaset -l app=net-istio-webhook
NAME DESIRED CURRENT READY AGE
net-istio-webhook-5fd875d5cb 1 1 1 13d
net-istio-webhook-6b474755fb 0 0 0 13d
$ kubectl -n knative-serving get replicaset -l app=net-istio-controller
NAME DESIRED CURRENT READY AGE
net-istio-controller-55c49d86cc 0 0 0 13d
net-istio-controller-6489dd6f5b 1 1 1 13d
```
5. The net-istio controller and net-istio webhook pods restart every 3 minutes.
```
$ kubectl -n knative-serving get pods -w
net-istio-controller-55c49d86cc-pg4vt 0/1 Pending 0 0s
net-istio-webhook-6b474755fb-d5nlj 0/2 Pending 0 0s
net-istio-controller-55c49d86cc-pg4vt 0/1 Pending 0 0s
net-istio-webhook-6b474755fb-d5nlj 0/2 Pending 0 0s
net-istio-controller-55c49d86cc-pg4vt 0/1 ContainerCreating 0 0s
net-istio-webhook-6b474755fb-d5nlj 0/2 Init:0/1 0 0s
net-istio-controller-55c49d86cc-pg4vt 0/1 Running 0 2s
net-istio-webhook-6b474755fb-d5nlj 0/2 PodInitializing 0 2s
net-istio-webhook-6b474755fb-d5nlj 0/2 Running 0 3s
net-istio-controller-55c49d86cc-pg4vt 1/1 Running 0 3s
net-istio-controller-6489dd6f5b-d4sr8 1/1 Terminating 0 2m51s
net-istio-controller-6489dd6f5b-d4sr8 0/1 Completed 0 2m52s
net-istio-webhook-6b474755fb-d5nlj 0/2 Running 0 4s
net-istio-webhook-6b474755fb-d5nlj 1/2 Running 0 4s
net-istio-webhook-6b474755fb-d5nlj 2/2 Running 0 4s
net-istio-controller-6489dd6f5b-d4sr8 0/1 Completed 0 2m52s
net-istio-controller-6489dd6f5b-d4sr8 0/1 Completed 0 2m52s
net-istio-webhook-5fd875d5cb-nsrkv 1/1 Terminating 0 2m52s
net-istio-webhook-5fd875d5cb-nsrkv 0/1 Terminating 0 2m55s
```

## Additional Info
**Additional context**
As I understand it, this bug was introduced in the 1.14 release. For some reason, Net-Istio was included in the Knative Operator codebase.
https://github.com/knative/operator/blob/a0cc535e3eaa464b0b28a4dea0b3a614093829be/cmd/operator/kodata/ingress/1.14/istio/net-istio.yaml

**Install information:**
```
$ kubectl version
Client Version: v1.31.0
Kustomize Version: v5.4.2
Server Version: v1.32.0+k3s1
knative-eventing 1.16.0 True
knative-serving 1.16.0 True
knative-operator: 1.16.0
```

````yaml
apiVersion: v1
items:
- apiVersion: operator.knative.dev/v1beta1
kind: KnativeServing
...
spec:
config:
deployment:
registries-skipping-tag-resolving: zot-int.zot.svc.cluster.local:5000,zot-int.zot:5000,127.0.0.1:30001
observability:
metrics.backend-destination: prometheus
metrics.request-metrics-backend-destination: prometheus
tracing:
backend: zipkin
debug: "true"
sample-rate: "1"
zipkin-endpoint: http://tempo.monitoring:9411/api/v2/spans
namespace:
labels:
istio-injection: enabled
```

Review the linked operator configuration and installation pages, especially the Serving resource and Istio installation instructions, alongside cmd/operator/kodata/ingress/1.14/istio/net-istio.yaml. Compare those instructions with the reported Knative Operator 1.16 behavior and update the documentation so the expected net-istio deployment and replica behavior are accurate.

Written by the indexing model from the issue text.