[WebSocket] Remove release assertions that are no longer needed.

third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 370 matching lines @@
 }
 
 Document* DocumentWebSocketChannel::document()
 {
     // This context is always a Document. See the constructor.
     ExecutionContext* context = executionContext();
     ASSERT(context->isDocument());
     return toDocument(context);
 }
 
-void DocumentWebSocketChannel::handleShouldBeDisconnected()
-{
-    RELEASE_ASSERT(!m_handle);
-}
-
 void DocumentWebSocketChannel::didConnect(WebSocketHandle* handle, const WebString& selectedProtocol, const WebString& extensions)
 {
     WTF_LOG(Network, "DocumentWebSocketChannel %p didConnect(%p, %s, %s)", this, handle, selectedProtocol.utf8().c_str(), extensions.utf8().c_str());
 
     ASSERT(m_handle);
     ASSERT(handle == m_handle);
     ASSERT(m_client);
 
     m_client->didConnect(selectedProtocol, extensions);
 }
@@ skipping 154 matching lines @@
 
 DEFINE_TRACE(DocumentWebSocketChannel)
 {
     visitor->trace(m_blobLoader);
     visitor->trace(m_client);
     WebSocketChannel::trace(visitor);
     ContextLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink