Revert "[translate] Add translate ranker model loader."

chrome/browser/translate/translate_ranker_factory.cc

-// Copyright 2016 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 "chrome/browser/translate/translate_ranker_factory.h"
-
-#include "chrome/browser/profiles/incognito_helpers.h"
-#include "components/keyed_service/content/browser_context_dependency_manager.h"
-#include "components/keyed_service/core/keyed_service.h"
-#include "components/translate/core/browser/translate_ranker_impl.h"
-#include "components/translate/core/common/translate_switches.h"
-#include "components/variations/variations_associated_data.h"
-#include "content/public/browser/browser_context.h"
-
-namespace translate {
-
-// static
-TranslateRankerFactory* TranslateRankerFactory::GetInstance() {
-  return base::Singleton<TranslateRankerFactory>::get();
-}
-
-// static
-translate::TranslateRanker* TranslateRankerFactory::GetForBrowserContext(
-    content::BrowserContext* browser_context) {
-  return static_cast<translate::TranslateRanker*>(
-      GetInstance()->GetServiceForBrowserContext(browser_context, true));
-}
-
-TranslateRankerFactory::TranslateRankerFactory()
-    : BrowserContextKeyedServiceFactory(
-          "TranslateRanker",
-          BrowserContextDependencyManager::GetInstance()) {}
-
-TranslateRankerFactory::~TranslateRankerFactory() {}
-
-KeyedService* TranslateRankerFactory::BuildServiceInstanceFor(
-    content::BrowserContext* browser_context) const {
-  return new TranslateRankerImpl(
-      TranslateRankerImpl::GetModelPath(browser_context->GetPath()),
-      TranslateRankerImpl::GetModelURL());
-}
-
-content::BrowserContext* TranslateRankerFactory::GetBrowserContextToUse(
-    content::BrowserContext* context) const {
-  return chrome::GetBrowserContextRedirectedInIncognito(context);
-}
-
-}  // namespace translate