QUIC - enable "delay_tcp_race" parameter by default. This feature showed

net/http/http_network_session.h

Index: net/http/http_network_session.h
diff --git a/net/http/http_network_session.h b/net/http/http_network_session.h
index 1de42b75144d9f72402211af8d2db77e292cc51d..c3cea43b1fc02b86c92ea46deee962fc1010a6f0 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -143,9 +143,6 @@ class NET_EXPORT HttpNetworkSession
     float quic_packet_loss_threshold;
     // Size in bytes of the QUIC DUP socket receive buffer.
     int quic_socket_receive_buffer_size;
-    // Delay starting a TCP connection when QUIC believes it can speak
-    // 0-RTT to a server.
-    bool quic_delay_tcp_race;
     // Maximum number of server configs that are to be stored in
     // HttpServerProperties, instead of the disk cache.
     size_t quic_max_server_configs_stored_in_properties;