Remove dead code in CPDF_CustomAccess

fpdfsdk/fsdk_define.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 FPDFSDK_FSDK_DEFINE_H_
 #define FPDFSDK_FSDK_DEFINE_H_
 
 #include "core/fpdfapi/parser/cpdf_parser.h"
@@ skipping 17 matching lines @@
 class CPDF_CustomAccess final : public IFX_FileRead {
  public:
   explicit CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess);
   ~CPDF_CustomAccess() override {}
 
   // IFX_FileRead
   FX_FILESIZE GetSize() override;
   void Release() override;
   FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
 
-#ifdef PDF_ENABLE_XFA
-  virtual CFX_ByteString GetFullPath();
-  virtual FX_BOOL GetByte(uint32_t pos, uint8_t& ch);
-  virtual FX_BOOL GetBlock(uint32_t pos, uint8_t* pBuf, uint32_t size);
-#endif  // PDF_ENABLE_XFA
-
  private:
   FPDF_FILEACCESS m_FileAccess;
-#ifdef PDF_ENABLE_XFA
-  uint8_t m_Buffer[512];
-  uint32_t m_BufferOffset;
-#endif  // PDF_ENABLE_XFA
 };
 
 #ifdef PDF_ENABLE_XFA
 class CFPDF_FileStream : public IFX_FileStream {
  public:
   explicit CFPDF_FileStream(FPDF_FILEHANDLER* pFS);
   ~CFPDF_FileStream() override {}
 
   // IFX_FileStream:
   IFX_FileStream* Retain() override;
@@ skipping 52 matching lines @@
                             int rotate,
                             int flags,
                             FX_BOOL bNeedToRestore,
                             IFSDK_PAUSE_Adapter* pause);
 
 void CheckUnSupportError(CPDF_Document* pDoc, uint32_t err_code);
 void CheckUnSupportAnnot(CPDF_Document* pDoc, const CPDF_Annot* pPDFAnnot);
 void ProcessParseError(CPDF_Parser::Error err);
 
 #endif  // FPDFSDK_FSDK_DEFINE_H_