Do not send lofi_active_control

components/data_reduction_proxy/content/browser/content_lofi_decider.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/data_reduction_proxy/content/browser/content_lofi_decider.h"
 
 #include <string>
 
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
@@ skipping 67 matching lines @@
   }
 
   // User is part of Lo-Fi active control experiment.
   if (request_info->IsUsingLoFi() &&
       params::IsIncludedInLoFiControlFieldTrial()) {
     if (headers->HasHeader(chrome_proxy_header())) {
       headers->GetHeader(chrome_proxy_header(), &header_value);
       headers->RemoveHeader(chrome_proxy_header());
       header_value += ", ";
     }
-    header_value += chrome_proxy_lo_fi_experiment_directive();
     headers->SetHeader(chrome_proxy_header(), header_value);
   }
 
   return false;
 }
 
 }  // namespace data_reduction_proxy