diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index b940bafcc3e4aa1767f5bff8daba2b4609fa9b47..a3cdd1f7fb9064fae84aa25e76f5d7cdab55070d 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -69,7 +69,6 @@ static inline int rtw_netif_queue_stopped(struct net_device *pnetdev)
 		netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 3));
 }
 
-#define rtw_update_mem_stat(flag, sz) do {} while (0)
 u8 *_rtw_malloc(u32 sz);
 #define rtw_malloc(sz)			_rtw_malloc((sz))