code: func (gb *GraphBuilder) removeDependentFromOwners(n *node, owners []metav1.OwnerReference) {
  	for _, owner := range owners {
  		ownerNode, ok := gb.uidToNode.Read(owner.UID)
  		if !ok {
  			continue
  		}
  		ownerNode.deleteDependent(n)
  	}
  }
docs: // removeDependentFromOwners remove n from owners' dependents list.