[DevTools] Remove Console.messagesCleared event.

third_party/WebKit/Source/platform/v8_inspector/V8ConsoleMessage.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 "platform/v8_inspector/V8ConsoleMessage.h"
 
 #include "platform/v8_inspector/InspectedContext.h"
 #include "platform/v8_inspector/V8ConsoleAgentImpl.h"
 #include "platform/v8_inspector/V8DebuggerImpl.h"
 #include "platform/v8_inspector/V8InspectorSessionImpl.h"
@@ skipping 452 matching lines @@
     }
     m_messages.push_back(std::move(message));
 }
 
 void V8ConsoleMessageStorage::clear()
 {
     m_messages.clear();
     m_expiredCount = 0;
     V8InspectorSessionImpl* session = m_debugger->sessionForContextGroup(m_contextGroupId);
     if (session) {
-        session->consoleAgent()->reset();
         session->releaseObjectGroup("console");
         session->client()->consoleCleared();
     }
 }
 
 void V8ConsoleMessageStorage::contextDestroyed(int contextId)
 {
     for (size_t i = 0; i < m_messages.size(); ++i)
         m_messages[i]->contextDestroyed(contextId);
 }
 
 } // namespace blink