Remove unnecessary finalization of IDBObserver classes.

third_party/WebKit/Source/modules/indexeddb/IDBObserverChanges.cpp

 // 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 "modules/indexeddb/IDBObserverChanges.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
 #include "bindings/modules/v8/V8BindingForModules.h"
 #include "modules/indexeddb/IDBAny.h"
 
 namespace blink {
 
-IDBObserverChanges::~IDBObserverChanges() {}
-
 ScriptValue IDBObserverChanges::records(ScriptState* scriptState)
 {
     return ScriptValue::from(scriptState, m_records);
 }
 
 IDBObserverChanges* IDBObserverChanges::create(IDBDatabase* database, IDBTransaction* transaction, IDBAny* records)
 {
     return new IDBObserverChanges(database, transaction, records);
 }
 
 IDBObserverChanges::IDBObserverChanges(IDBDatabase* database, IDBTransaction* transaction, IDBAny* records)
     : m_database(database)
     , m_transaction(transaction)
     , m_records(records)
 {
 }
 
 DEFINE_TRACE(IDBObserverChanges)
 {
     visitor->trace(m_database);
     visitor->trace(m_transaction);
     visitor->trace(m_records);
 }
 
 } // namespace blink