Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate

webrtc/p2p/base/p2ptransportchannel_unittest.cc

 /*
  *  Copyright 2009 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1181 matching lines @@
   }
   ASSERT_TRUE(best_conn_info != nullptr);
   EXPECT_TRUE(best_conn_info->new_connection);
   EXPECT_TRUE(best_conn_info->receiving);
   EXPECT_TRUE(best_conn_info->writable);
   EXPECT_FALSE(best_conn_info->timeout);
   EXPECT_EQ(10U, best_conn_info->sent_total_packets);
   EXPECT_EQ(0U, best_conn_info->sent_discarded_packets);
   EXPECT_EQ(10 * 36U, best_conn_info->sent_total_bytes);
   EXPECT_EQ(10 * 36U, best_conn_info->recv_total_bytes);
+  EXPECT_GT(best_conn_info->rtt, 0U);
   DestroyChannels();
 }
 
 // Tests that UMAs are recorded when ICE restarts while the channel
 // is disconnected.
 TEST_F(P2PTransportChannelTest, TestUMAIceRestartWhileDisconnected) {
   rtc::ScopedFakeClock clock;
   ConfigureEndpoints(OPEN, OPEN, kOnlyLocalPorts, kOnlyLocalPorts);
 
   CreateChannels();
@@ skipping 3175 matching lines @@
 
   // TCP Relay/Relay is the next.
   VerifyNextPingableConnection(RELAY_PORT_TYPE, RELAY_PORT_TYPE,
                                TCP_PROTOCOL_NAME);
 
   // Finally, Local/Relay will be pinged.
   VerifyNextPingableConnection(LOCAL_PORT_TYPE, RELAY_PORT_TYPE);
 }
 
 }  // namespace cricket {