Revert of [Cronet] Add QUIC experimental params

net/url_request/url_request_context_builder.cc

Index: net/url_request/url_request_context_builder.cc
diff --git a/net/url_request/url_request_context_builder.cc b/net/url_request/url_request_context_builder.cc
index 91e399112d3432ed2726d01b5ff8b0f5e8bb20f7..2abd95f3db6f3c16af583c6bc2c4c9e373906c03 100644
--- a/net/url_request/url_request_context_builder.cc
+++ b/net/url_request/url_request_context_builder.cc
@@ -177,11 +177,7 @@
       testing_fixed_https_port(0),
       next_protos(NextProtosDefaults()),
       use_alternative_services(true),
-      enable_quic(false),
-      quic_store_server_configs_in_properties(false),
-      quic_delay_tcp_race(false),
-      quic_max_number_of_lossy_connections(0),
-      quic_packet_loss_threshold(1.0f) {}
+      enable_quic(false) {}
 
 URLRequestContextBuilder::HttpNetworkSessionParams::~HttpNetworkSessionParams()
 {}
@@ -393,14 +389,6 @@
       http_network_session_params_.trusted_spdy_proxy;
   network_session_params.next_protos = http_network_session_params_.next_protos;
   network_session_params.enable_quic = http_network_session_params_.enable_quic;
-  network_session_params.quic_store_server_configs_in_properties =
-      http_network_session_params_.quic_store_server_configs_in_properties;
-  network_session_params.quic_delay_tcp_race =
-      http_network_session_params_.quic_delay_tcp_race;
-  network_session_params.quic_max_number_of_lossy_connections =
-      http_network_session_params_.quic_max_number_of_lossy_connections;
-  network_session_params.quic_packet_loss_threshold =
-      http_network_session_params_.quic_packet_loss_threshold;
   network_session_params.quic_connection_options =
       http_network_session_params_.quic_connection_options;
   network_session_params.ssl_session_cache_shard =