[PATCH] tcp: remove useless update for flag parameter in tcp_enter_frto_loss()

[Li Yu <raise.sail@gmail.com>]

It seem that we forget remove below two lines after copying code :)

This update never impacts others.

Sorry for last mail with legal notices improperly, I used wrong
mail.

Signed-off-by Li Yu <bingtian.ly@taobao.com>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e886e2f..b2f8ada 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2169,8 +2169,6 @@ static void tcp_enter_frto_loss(struct sock *sk,
int allowed_segments, int flag)
 			/* For some reason this R-bit might get cleared? */
 			if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS)
 				tp->retrans_out += tcp_skb_pcount(skb);
-			/* ...enter this if branch just for the first segment */
-			flag |= FLAG_DATA_ACKED;
 		} else {
 			if (TCP_SKB_CB(skb)->sacked & TCPCB_RETRANS)
 				tp->undo_marker = 0;