[net/netdev]Fixed compilation errors when enabling IPv6 and IPv4 dual-stack support.

components/net/netdev/src/netdev.c

@@ -1415,20 +1415,8 @@ int netdev_cmd_ping(char* target_name, char *netdev_name, rt_uint32_t times, rt_
     /* print ping statistics */
     loss = (uint32_t)((1 - ((float)received) / index) * 100);
     avg_time = (uint32_t)(avg_time / received);
-#if NETDEV_IPV4 && NETDEV_IPV6
-    if (IP_IS_V4_VAL(&ping_resp.ip_addr))
-    {
-        rt_kprintf("\n--- %s ping statistics ---\n", inet_ntoa(*ip_2_ip4(&ping_resp.ip_addr)));
-    }
-    else
-    {
-        rt_kprintf("\n--- %s ping statistics ---\n", inet6_ntoa(*ip_2_ip6(&ping_resp.ip_addr)));
-    }
-#elif NETDEV_IPV4
+
     rt_kprintf("\n--- %s ping statistics ---\n", inet_ntoa(ping_resp.ip_addr));
-#elif NETDEV_IPV6
-    rt_kprintf("\n--- %s ping statistics ---\n", inet6_ntoa(ping_resp.ip_addr));
-#endif
     rt_kprintf("%d packets transmitted, %d received, %d%% packet loss\n", index, received, loss);
     if (received > 0)
     {