tcp: remove useless prediction

Type: fix

Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
Change-Id: Ie2dc2653baec92347eb2cbcd197a2e5ec6a80c79
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 67cec5a..adbfe7a 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1096,9 +1096,7 @@
     {
       if (seq_lt (blk->start, blk->end)
 	  && seq_gt (blk->start, tc->snd_una)
-	  && seq_gt (blk->start, ack)
-	  && seq_lt (blk->start, tc->snd_nxt)
-	  && seq_leq (blk->end, tc->snd_nxt))
+	  && seq_gt (blk->start, ack) && seq_leq (blk->end, tc->snd_nxt))
 	{
 	  blk++;
 	  continue;