issue#6181 lb的IPPortMappings不为空时，不允许忽略IPPortMapping (#6182)

Signed-off-by: tongruishan <tongruishan@cnpc.com.cn>

Author: Tongruishan

pkg/ovs/ovn-nb-load_balancer.go

@@ -149,12 +149,14 @@ func (c *OVNNbClient) LoadBalancerDeleteVip(lbName, vipEndpoint string, ignoreHe
 		lbhc *ovnnb.LoadBalancerHealthCheck
 		err  error
 	)
-
 	lb, lbhc, err = c.GetLoadBalancerHealthCheck(lbName, vipEndpoint, true)
 	if err != nil {
 		klog.Errorf("failed to get lb health check: %v", err)
 		return err
 	}
+	if len(lb.IPPortMappings) != 0 {
+		ignoreHealthCheck = false
+	}
 	if !ignoreHealthCheck && lbhc != nil {
 		klog.Infof("clean health check for lb %s with vip %s", lbName, vipEndpoint)
 		// delete ip port mapping