staging: rtl8723bs: core: Remove Macro "IS_MAC_ADDRESS_BROADCAST"

Remove unused macro IS_MAC_ADDRESS_BROADCAST. In future if one wants use
it ,use generic API "is_broadcast_ether_addr"

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Link: https://lore.kernel.org/r/1567933780-2790-1-git-send-email-hariprasad.kelam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_ioctl_set.c

@@ -9,13 +9,6 @@
 #include <drv_types.h>
 #include <rtw_debug.h>
 
-#define IS_MAC_ADDRESS_BROADCAST(addr) \
-(\
-	((addr[0] == 0xff) && (addr[1] == 0xff) && \
-		(addr[2] == 0xff) && (addr[3] == 0xff) && \
-		(addr[4] == 0xff) && (addr[5] == 0xff))  ? true : false \
-)
-
 u8 rtw_validate_bssid(u8 *bssid)
 {
 	u8 ret = true;