batman-adv: checkpatch - else is not generally useful after a break or return

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
diff --git a/net/batman-adv/bitarray.h b/net/batman-adv/bitarray.h
index cc24073..2acaafe 100644
--- a/net/batman-adv/bitarray.h
+++ b/net/batman-adv/bitarray.h
@@ -29,8 +29,7 @@
 	diff = last_seqno - curr_seqno;
 	if (diff < 0 || diff >= BATADV_TQ_LOCAL_WINDOW_SIZE)
 		return 0;
-	else
-		return test_bit(diff, seq_bits) != 0;
+	return test_bit(diff, seq_bits) != 0;
 }
 
 /* turn corresponding bit on, so we can remember that we got the packet */