Revert "Add metrics for search engine promo and search widget"

chrome/browser/android/locale/locale_manager.cc

 // Copyright 2017 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/android/locale/locale_manager.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
-#include "components/search_engines/template_url_prepopulate_data.h"
+#include "base/android/scoped_java_ref.h"
 #include "jni/LocaleManager_jni.h"
-#include "url/gurl.h"
 
 // static
 std::string LocaleManager::GetYandexReferralID() {
   JNIEnv* env = base::android::AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jobject> jlocale_manager =
       Java_LocaleManager_getInstance(env);
   return base::android::ConvertJavaStringToUTF8(
       env, Java_LocaleManager_getYandexReferralId(env, jlocale_manager));
 }
-
-// static
-int GetEngineType(JNIEnv* env,
-                  const base::android::JavaParamRef<jclass>& clazz,
-                  const base::android::JavaParamRef<jstring>& j_url) {
-  GURL url(base::android::ConvertJavaStringToUTF8(env, j_url));
-  return TemplateURLPrepopulateData::GetEngineType(url);
-}
-
-bool RegisterLocaleManager(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}