net/hsr: remove seq_nr_after_or_eq

It's never used after introduced. So maybe better to remove.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Arvid Brodin <arvid.brodin@alten.se>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

net/hsr/hsr_framereg.c

@@ -35,7 +35,6 @@ static bool seq_nr_after(u16 a, u16 b)
 }
 
 #define seq_nr_before(a, b)		seq_nr_after((b), (a))
-#define seq_nr_after_or_eq(a, b)	(!seq_nr_before((a), (b)))
 #define seq_nr_before_or_eq(a, b)	(!seq_nr_after((a), (b)))
 
 bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr)