Remove unused IFX_Pause member

The IFX_Pause param is stored but never used. Remove.

Change-Id: I9e5298fc05c6d408873b7bee307a76dcf3d2d4da
Reviewed-on: https://pdfium-review.googlesource.com/4931
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

core/fxcodec/jbig2/JBig2_GrdProc.cpp

diff --git a/core/fxcodec/jbig2/JBig2_GrdProc.cpp b/core/fxcodec/jbig2/JBig2_GrdProc.cpp
index 675de9b..21d6d80 100644
--- a/core/fxcodec/jbig2/JBig2_GrdProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_GrdProc.cpp
@@ -17,7 +17,6 @@
 CJBig2_GRDProc::CJBig2_GRDProc()
     : m_loopIndex(0),
       m_pLine(nullptr),
-      m_pPause(nullptr),
       m_DecodeType(0),
       m_LTP(0) {
   m_ReplaceRect.left = 0;
@@ -640,7 +639,6 @@
     return FXCODEC_STATUS_DECODE_FINISH;
   }
   m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY;
-  m_pPause = pPause;
   if (!*pImage)
     *pImage = new CJBig2_Image(GBW, GBH);
   if (!(*pImage)->m_pData) {

core/fxcodec/jbig2/JBig2_GrdProc.h

diff --git a/core/fxcodec/jbig2/JBig2_GrdProc.h b/core/fxcodec/jbig2/JBig2_GrdProc.h
index a82aecb..1268192 100644
--- a/core/fxcodec/jbig2/JBig2_GrdProc.h
+++ b/core/fxcodec/jbig2/JBig2_GrdProc.h
@@ -111,7 +111,6 @@
 
   uint32_t m_loopIndex;
   uint8_t* m_pLine;
-  IFX_Pause* m_pPause;
   FXCODEC_STATUS m_ProssiveStatus;
   CJBig2_Image** m_pImage;
   CJBig2_ArithDecoder* m_pArithDecoder;