w1: remove unused and confusing variable.

Remvoe variable which actually is not used (except assigning it a value)
and confusing break out of the family checking loop.  Found by Harry Mason.
Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Harry J Mason <hjm03r@ecs.soton.ac.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/w1/w1.c

@@ -675,7 +675,6 @@ static void w1_slave_found(void *data, u64 rn)
 	struct w1_slave *sl;
 	struct list_head *ent;
 	struct w1_reg_num *tmp;
-	int family_found = 0;
 	struct w1_master *dev;
 	u64 rn_le = cpu_to_le64(rn);
 
@@ -698,9 +697,6 @@ static void w1_slave_found(void *data, u64 rn)
 		    sl->reg_num.crc == tmp->crc) {
 			set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
 			break;
-		} else if (sl->reg_num.family == tmp->family) {
-			family_found = 1;
-			break;
 		}
 
 		slave_count++;