include/linux/if_ether.h: Remove unused defines MAC_BUF_SIZE and DECLARE_MAC_BUF

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/if_ether.h

@@ -137,8 +137,6 @@ extern struct ctl_table ether_table[];
 extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
 
 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-#define MAC_BUF_SIZE	18
-#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE]
 
 #endif