Android: Remove unneeded RegisterNatives() calls

components/bookmarks/common/android/bookmark_id.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_BOOKMARKS_COMMON_ANDROID_BOOKMARK_ID_H_
 #define COMPONENTS_BOOKMARKS_COMMON_ANDROID_BOOKMARK_ID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
 
 namespace bookmarks {
 namespace android {
 
 // See BookmarkId#getId
 long JavaBookmarkIdGetId(JNIEnv* env, jobject obj);
 
 // See BookmarkId#getType
 int JavaBookmarkIdGetType(JNIEnv* env, jobject obj);
 
 // See BookmarkId#createBookmarkId
 base::android::ScopedJavaLocalRef<jobject> JavaBookmarkIdCreateBookmarkId(
     JNIEnv* env, jlong id, jint type);
 
-bool RegisterBookmarkId(JNIEnv* env);
-
 }  // namespace android
 }  // namespace bookmarks
 
 #endif  // COMPONENTS_BOOKMARKS_COMMON_ANDROID_BOOKMARK_ID_H_