Remove unused FX_TXTRUN::pIdentity

Unused, removed.

Change-Id: I0c7e65224777932e38ca93d81709c8321aecb1c5
Reviewed-on: https://pdfium-review.googlesource.com/29290
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
diff --git a/xfa/fde/cfde_texteditengine.cpp b/xfa/fde/cfde_texteditengine.cpp
index d085a8d..39396ad 100644
--- a/xfa/fde/cfde_texteditengine.cpp
+++ b/xfa/fde/cfde_texteditengine.cpp
@@ -939,7 +939,6 @@
 
   FX_TXTRUN tr;
   tr.pEdtEngine = this;
-  tr.pIdentity = &piece;
   tr.iLength = piece.nCount;
   tr.pFont = font_;
   tr.fFontSize = font_size_;
@@ -956,7 +955,6 @@
 
   FX_TXTRUN tr;
   tr.pEdtEngine = this;
-  tr.pIdentity = &piece;
   tr.iLength = piece.nCount;
   tr.pFont = font_;
   tr.fFontSize = font_size_;
diff --git a/xfa/fgas/layout/cfx_txtbreak.cpp b/xfa/fgas/layout/cfx_txtbreak.cpp
index b019992..30ed3a6 100644
--- a/xfa/fgas/layout/cfx_txtbreak.cpp
+++ b/xfa/fgas/layout/cfx_txtbreak.cpp
@@ -983,7 +983,6 @@
 
 FX_TXTRUN::FX_TXTRUN()
     : pEdtEngine(nullptr),
-      pIdentity(nullptr),
       pWidths(nullptr),
       iLength(0),
       pFont(nullptr),
diff --git a/xfa/fgas/layout/cfx_txtbreak.h b/xfa/fgas/layout/cfx_txtbreak.h
index e6f8da0..b43fda0 100644
--- a/xfa/fgas/layout/cfx_txtbreak.h
+++ b/xfa/fgas/layout/cfx_txtbreak.h
@@ -40,7 +40,6 @@
   ~FX_TXTRUN();
 
   CFDE_TextEditEngine* pEdtEngine;
-  const FDE_TEXTEDITPIECE* pIdentity;
   WideString wsStr;
   int32_t* pWidths;
   int32_t iLength;