Data Reduction Proxy: Remove duplicate functions

components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h b/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
index c2f79e9b84e9a36f411eb27c3be917c82f4159f1..7ae5f5971d820da0ab723f2ec37340e7ac569f45 100644
--- a/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
@@ -17,15 +17,6 @@ class DataReductionProxyConfigValues {
  public:
   virtual ~DataReductionProxyConfigValues() {}
 
-  // Returns true if the data reduction proxy promo may be shown.
-  // This is independent of whether the data reduction proxy is allowed.
-  // TODO(bengr): maybe tie to whether proxy is allowed.
-  virtual bool promo_allowed() const = 0;
-
-  // Returns true if the data reduction proxy should not actually use the
-  // proxy if enabled.
-  virtual bool holdback() const = 0;
-
   // Returns the HTTP proxy servers to be used.
   virtual const std::vector<DataReductionProxyServer>& proxies_for_http()
       const = 0;