Merge to XFA: Remove CJBig2_Module::JBig2_Error and friends.

core/src/fxcodec/jbig2/JBig2_Module.h

 // Copyright 2014 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
 
 #ifndef _JBIG2_MODULE_H_
 #define _JBIG2_MODULE_H_
 #include "JBig2_Define.h"
 class CJBig2_Module {
  public:
   virtual ~CJBig2_Module() {}
 
   virtual void* JBig2_Malloc(FX_DWORD dwSize) = 0;
 
   virtual void* JBig2_Malloc2(FX_DWORD num, FX_DWORD dwSize) = 0;
 
   virtual void* JBig2_Malloc3(FX_DWORD num,
                               FX_DWORD dwSize,
                               FX_DWORD dwSize2) = 0;
 
   virtual void* JBig2_Realloc(void* pMem, FX_DWORD dwSize) = 0;
 
   virtual void JBig2_Free(void* pMem) = 0;
-
-  virtual void JBig2_Assert(int32_t nExpression) {}
-
-  virtual void JBig2_Error(const FX_CHAR* format, ...) {}
-
-  virtual void JBig2_Warn(const FX_CHAR* format, ...) {}
-
-  virtual void JBig2_Log(const FX_CHAR* format, ...) {}
 };
 #endif