Remove unused "Disable remote Alt-Svc" QUIC experiment code.

components/network_session_configurator/network_session_configurator.cc

Index: components/network_session_configurator/network_session_configurator.cc
diff --git a/components/network_session_configurator/network_session_configurator.cc b/components/network_session_configurator/network_session_configurator.cc
index 5822adf686563c5e8d6ac93edc6b0b1116d19e4f..e12cc1c1cccab92cdb3569d89fdcbaeb173c5cf6 100644
--- a/components/network_session_configurator/network_session_configurator.cc
+++ b/components/network_session_configurator/network_session_configurator.cc
@@ -123,14 +123,6 @@ bool ShouldRetryWithoutAltSvcOnQuicErrors(
       "true");
 }
 
-bool ShouldQuicEnableAlternativeServicesForDifferentHost(
-    const VariationParameters& quic_trial_params) {
-  return !base::LowerCaseEqualsASCII(
-      GetVariationParam(quic_trial_params,
-                        "enable_alternative_service_with_different_host"),
-      "false");
-}
-
 net::QuicTagVector GetQuicConnectionOptions(
     const VariationParameters& quic_trial_params) {
   VariationParameters::const_iterator it =
@@ -306,8 +298,6 @@ void ConfigureQuicParams(base::StringPiece quic_trial_group,
 
   params->retry_without_alt_svc_on_quic_errors =
       ShouldRetryWithoutAltSvcOnQuicErrors(quic_trial_params);
-  params->enable_quic_alternative_service_with_different_host =
-      ShouldQuicEnableAlternativeServicesForDifferentHost(quic_trial_params);
 
   if (params->enable_quic) {
     params->quic_delay_tcp_race = ShouldQuicDelayTcpRace(quic_trial_params);