code: public OperationFuture<LoadBalancer> delete(LoadBalancer loadBalancer) {
          LoadBalancerMetadata loadBalancerMetadata = findByRef(loadBalancer);
  
          loadBalancerClient.delete(
              loadBalancerMetadata.getDataCenterId(),
              loadBalancerMetadata.getId()
          );
  
          return new OperationFuture<>(
              loadBalancer,
              new NoWaitingJobFuture()
          );
      }
docs: Delete load balancer
  
  @param loadBalancer load balancer
  @return OperationFuture wrapper for load balancer