Data Reduction Proxy: Remove duplicate functions

components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
index b07e7dd8c8bbdafba501863d38e0ea58852e0d19..0c671cabd760f2f708949ef7ea9a1a164b398031 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
@@ -54,7 +54,6 @@ const char kDataReductionPassThroughHeader[] =
 DataReductionProxySettings::DataReductionProxySettings()
     : unreachable_(false),
       deferred_initialization_(false),
-      promo_allowed_(false),
       data_reduction_proxy_enabled_pref_name_(),
       prefs_(NULL),
       config_(nullptr),
@@ -79,11 +78,6 @@ void DataReductionProxySettings::InitPrefMembers() {
                  base::Unretained(this)));
 }
 
-void DataReductionProxySettings::UpdateConfigValues() {
-  DCHECK(config_);
-  promo_allowed_ = config_->promo_allowed();
-}
-
 void DataReductionProxySettings::InitDataReductionProxySettings(
     const std::string& data_reduction_proxy_enabled_pref_name,
     PrefService* prefs,
@@ -102,7 +96,6 @@ void DataReductionProxySettings::InitDataReductionProxySettings(
   data_reduction_proxy_service_ = std::move(data_reduction_proxy_service);
   data_reduction_proxy_service_->AddObserver(this);
   InitPrefMembers();
-  UpdateConfigValues();
   RecordDataReductionInit();
   data_reduction_proxy_service_->InitializeLoFiPrefs();