Remove insecure QUIC support

net/quic/quic_connection.cc

Index: net/quic/quic_connection.cc
diff --git a/net/quic/quic_connection.cc b/net/quic/quic_connection.cc
index 71d9d20379b871f6d0aaf2040457d6e6851e41aa..79eadb5ecc888b4dc38aa7cf3eb2a6679cb41060 100644
--- a/net/quic/quic_connection.cc
+++ b/net/quic/quic_connection.cc
@@ -260,12 +260,9 @@ QuicConnection::QuicConnection(QuicConnectionId connection_id,
                                IPEndPoint address,
                                QuicConnectionHelperInterface* helper,
                                const PacketWriterFactory& writer_factory,
-                               bool owns_writer,
-                               Perspective perspective,
-                               bool is_secure,
+                               bool owns_writer, Perspective perspective,
                                const QuicVersionVector& supported_versions)
-    : framer_(supported_versions,
-              helper->GetClock()->ApproximateNow(),
+    : framer_(supported_versions, helper->GetClock()->ApproximateNow(),
               perspective),
       helper_(helper),
       writer_(writer_factory.Create(this)),
@@ -311,12 +308,9 @@ QuicConnection::QuicConnection(QuicConnectionId connection_id,
       time_of_last_sent_new_packet_(clock_->ApproximateNow()),
       packet_number_of_last_sent_packet_(0),
       sent_packet_manager_(
-          perspective,
-          clock_,
-          &stats_,
+          perspective, clock_, &stats_,
           FLAGS_quic_use_bbr_congestion_control ? kBBR : kCubic,
-          FLAGS_quic_use_time_loss_detection ? kTime : kNack,
-          is_secure),
+          FLAGS_quic_use_time_loss_detection ? kTime : kNack),
       version_negotiation_state_(START_NEGOTIATION),
       perspective_(perspective),
       connected_(true),
@@ -325,7 +319,6 @@ QuicConnection::QuicConnection(QuicConnectionId connection_id,
       self_ip_changed_(false),
       self_port_changed_(false),
       can_truncate_connection_ids_(true),
-      is_secure_(is_secure),
       mtu_discovery_target_(0),
       mtu_probe_count_(0),
       packets_between_mtu_probes_(kPacketsBetweenMtuProbesBase),