when realTimeKernel is false unable to remove workloadhints using performancev2.PerformanceProfile api

apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  annotations:
    performance.openshift.io/ignore-cgroups-version: "true"
  creationTimestamp: "2024-02-01T11:58:58Z"
  finalizers:
  - foreground-deletion
  generation: 10
  name: performance
  resourceVersion: "55633"
  uid: 8aaa4cf9-94f0-4ee6-a8ac-869e7f5fe0f6
spec:
  cpu:
    isolated: 0-2
    reserved: "3"
  net:
    userLevelNetworking: true
  nodeSelector:
    node-role.kubernetes.io/worker-cnf: ""
  numa:
    topologyPolicy: single-numa-node
  realTimeKernel:
    enabled: false
  workloadHints:
    realTime: true

package main 

import (
"k8s.io/utils/pointer" 
performancev2 "github.com/openshift/cluster-node-tuning-operator/pkg/apis/performanceprofile/v2" 
testutils "github.com/openshift/cluster-node-tuning-operator/test/e2e/performanceprofile/functests/utils"
"github.com/openshift/cluster-node-tuning-operator/test/e2e/performanceprofile/functests/utils/profiles" 
)

func main() {

     var profile *performancev2.PerformanceProfile
     nodeLabel := testutils.NodeSelectorLabels
     profile, err = profiles.GetByNodeLabels(nodeLabel)
     profile.Spec.WorkloadHints.RealTime = pointer.Bool(false)  
     // or 
     // profile.Spec.WorkloadHints = nil 
     profile.Spec.RealTimeKernel = &performancev2.RealTimeKernel{ 
           Enabled: pointer.Bool(false),
     }
     profiles.UpdateWithRetry(profile) 
     fmt.Println(profile) 
  
}