ARM: atmel: sama5d3: drop unused CONFIG_NET_MULTI

Drop unused CONFIG_NET_MULTI

Signed-off-by: Bo Shen <voice.shen@gmail.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h
index 4099198..76fa500 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -130,7 +130,6 @@
 /* Ethernet Hardware */
 #define CONFIG_MACB
 #define CONFIG_RMII
-#define CONFIG_NET_MULTI
 #define CONFIG_NET_RETRY_COUNT		20
 #define CONFIG_MACB_SEARCH_PHY
 #define CONFIG_RGMII