Remove CPDF_Object::Release() in favor of direct delete

core/fpdfapi/page/cpdf_contentmarkitem.cpp

 // Copyright 2016 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fpdfapi/page/cpdf_contentmarkitem.h"
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 
@@ skipping 21 matching lines @@
       return nullptr;
   }
 }
 
 bool CPDF_ContentMarkItem::HasMCID() const {
   CPDF_Dictionary* pDict = GetParam();
   return pDict && pDict->KeyExist("MCID");
 }
 
 void CPDF_ContentMarkItem::SetDirectDict(
-    std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>> pDict) {
+    std::unique_ptr<CPDF_Dictionary> pDict) {
   m_ParamType = DirectDict;
   m_pDirectDict = std::move(pDict);
 }
 
 void CPDF_ContentMarkItem::SetPropertiesDict(CPDF_Dictionary* pDict) {
   m_ParamType = PropertiesDict;
   m_pPropertiesDict = pDict;
 }