Remove unused feedback class in dom distiller component

components/dom_distiller/content/renderer/distiller_native_javascript.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/dom_distiller/content/renderer/distiller_native_javascript.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 27 matching lines @@
 
   v8::Local<v8::Object> distiller_obj =
       GetOrCreateDistillerObject(isolate, context->Global());
 
   EnsureServiceConnected();
 
   // Many functions can simply call the Mojo interface directly and have no
   // wrapper function for binding. Note that calling distiller_js_service.get()
   // does not transfer ownership of the interface.
   BindFunctionToObject(
-      distiller_obj, "sendFeedback",
-      base::Bind(
-          &mojom::DistillerJavaScriptService::HandleDistillerFeedbackCall,
-          base::Unretained(distiller_js_service_.get())));
-
-  BindFunctionToObject(
       distiller_obj, "closePanel",
       base::Bind(
           &mojom::DistillerJavaScriptService::HandleDistillerClosePanelCall,
           base::Unretained(distiller_js_service_.get())));
 
   BindFunctionToObject(
       distiller_obj, "openSettings",
       base::Bind(
           &mojom::DistillerJavaScriptService::HandleDistillerOpenSettingsCall,
           base::Unretained(distiller_js_service_.get())));
@@ skipping 26 matching lines @@
   if (distiller_value.IsEmpty() || !distiller_value->IsObject()) {
     distiller_obj = v8::Object::New(isolate);
     global->Set(gin::StringToSymbol(isolate, "distiller"), distiller_obj);
   } else {
     distiller_obj = v8::Local<v8::Object>::Cast(distiller_value);
   }
   return distiller_obj;
 }
 
 }  // namespace dom_distiller