Revert "e2e/network: dump iptables and conntrack flows for debugging"

This reverts commit 3f2deb51ad.

test/e2e/framework/network/utils.go

@@ -364,27 +364,6 @@ func (config *NetworkingTestConfig) DialFromContainer(ctx context.Context, proto
 				}
 				framework.Logf("Dump network information for node %s:\n%s", node.Name, result)
 			}
-			// Dump the node iptables rules and conntrack flows for troubleshooting #123760
-			podList, _ := config.f.ClientSet.CoreV1().Pods("kube-system").List(ctx, metav1.ListOptions{
-				LabelSelector: "k8s-app=kube-proxy",
-			})
-			for _, pod := range podList.Items {
-				// dump only for the node running test-container-pod
-				if pod.Status.HostIP == config.TestContainerPod.Status.HostIP {
-					output, _, _ := e2epod.ExecWithOptions(config.f, e2epod.ExecOptions{
-						Namespace:          "kube-system",
-						PodName:            pod.Name,
-						ContainerName:      "kube-proxy",
-						Command:            []string{"sh", "-c", fmt.Sprintf(`echo "IPTables Dump: " && iptables-save | grep "%s/%s:http" && echo "Conntrack flows: " && conntrack -Ln -p tcp | grep %d`, config.Namespace, config.NodePortService.Name, EndpointHTTPPort)},
-						Stdin:              nil,
-						CaptureStdout:      true,
-						CaptureStderr:      true,
-						PreserveWhitespace: false,
-					})
-					framework.Logf("Dump iptables and connntrack flows\n%s", output)
-					break
-				}
-			}
 			return returnMsg
 		}