Service/secret is not deleted when the inputs.receiver.http is removed

Description of problem:

When the inputs.receiver section is removed from ClusterLogForwarder. The http service, secret are not removed.

Steps to Reproduce:

1. Enable inputs.receiver.http

cat <<EOF |  oc apply -f -
apiVersion: logging.openshift.io/v1
kind: ClusterLogForwarder
metadata:
  name: instance
spec:
  inputs:
    - name: input-http1
      receiver:
        http: 
          format: kubeAPIAudit
          port: 9443
  pipelines:
    - name: to-default
      inputRefs:
      - input-http1
      - application
      outputRefs:
      - default
EOF

2. verify the service input-http1 is created.
$oc get svc input-http1
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
input-http1 ClusterIP 172.30.40.80 <none> 443/TCP 10m
[anli@preserve-docker-slave 239223]$

3. Delete the inputs.receiver

cat <<EOF |  oc apply --all --prune -f -
apiVersion: logging.openshift.io/v1
kind: ClusterLogForwarder
metadata:
  name: instance
spec:
  pipelines:
    - name: to-default
      inputRefs:
      - application
      outputRefs:
      - default
EOF

4. Verify svc&secret for input-http1 are removed.
$oc get svc input-http1
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
httpserver1 ClusterIP 172.30.40.80 <none> 443/TCP 14m

$oc get secret input-http1
NAME TYPE DATA AGE
input-http1 kubernetes.io/tls 2 14m

Expected results:

service input-http1 and secret input-http1 are deleted once the inputs section is removed.

Additional info:

All resource are deleted after CLF is removed.