Revert "tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set"

This reverts commit f3f32a35.

Paolo reports that the change disables autocorking even after
the userspace sets TCP_CORK.

Fixes: f3f32a35 ("tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set")
Link: https://lore.kernel.org/r/0d30d5a41d3ac990573016308aaeacb40a9dc79f.camel@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/ipv4/tcp.c

@@ -716,7 +716,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
 
 	tcp_mark_urg(tp, flags);
 
-	if (!nonagle && tcp_should_autocork(sk, skb, size_goal)) {
+	if (tcp_should_autocork(sk, skb, size_goal)) {
 
 		/* avoid atomic op if TSQ_THROTTLED bit is already set */
 		if (!test_bit(TSQ_THROTTLED, &sk->sk_tsq_flags)) {