net: tap: clean up an indentation issue

There is a statement that is indented too deeply, remove
the extraneous tab.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/tap.c

@@ -1200,7 +1200,7 @@ static int tap_get_user_xdp(struct tap_queue *q, struct xdp_buff *xdp)
 	kfree_skb(skb);
 err:
 	rcu_read_lock();
-		tap = rcu_dereference(q->tap);
+	tap = rcu_dereference(q->tap);
 	if (tap && tap->count_tx_dropped)
 		tap->count_tx_dropped(tap);
 	rcu_read_unlock();