Remove useless code.

Change-Id: Ibb7e33dddd79d6266961ebdf56600fc5a091dcb8
Reviewed-on: https://pdfium-review.googlesource.com/9071
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index 6f12260..05f8272 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -1568,14 +1568,6 @@
   return true;
 }
 
-void CPDF_DataAvail::GetLinearizedMainXRefInfo(FX_FILESIZE* pPos,
-                                               uint32_t* pSize) {
-  if (pPos)
-    *pPos = m_dwLastXRefOffset;
-  if (pSize)
-    *pSize = (uint32_t)(m_dwFileLen - m_dwLastXRefOffset);
-}
-
 int CPDF_DataAvail::GetPageCount() const {
   if (m_pLinearized)
     return m_pLinearized->GetPageCount();
diff --git a/core/fpdfapi/parser/cpdf_data_avail.h b/core/fpdfapi/parser/cpdf_data_avail.h
index f47c859..596fb0b 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.h
+++ b/core/fpdfapi/parser/cpdf_data_avail.h
@@ -107,7 +107,6 @@
   DocFormStatus IsFormAvail(DownloadHints* pHints);
   DocLinearizationStatus IsLinearizedPDF();
   bool IsLinearized();
-  void GetLinearizedMainXRefInfo(FX_FILESIZE* pPos, uint32_t* pSize);
   CFX_RetainPtr<IFX_SeekableReadStream> GetFileRead() const {
     return m_pFileRead;
   }