Remove Release() from IFX_Edit_UndoItem.

fpdfsdk/src/formfiller/FFL_TextField.cpp

Index: fpdfsdk/src/formfiller/FFL_TextField.cpp
diff --git a/fpdfsdk/src/formfiller/FFL_TextField.cpp b/fpdfsdk/src/formfiller/FFL_TextField.cpp
index 6a70981e4f6301acf0d2cc68d92be0e3467e2fb4..f45d95364d85a86477bc31bb86413ebdc2fa4423 100644
--- a/fpdfsdk/src/formfiller/FFL_TextField.cpp
+++ b/fpdfsdk/src/formfiller/FFL_TextField.cpp
@@ -4,37 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-//#include "../include/FormFiller.h"
-//#include "../include/FFL_FormFiller.h"
 #include "../../include/formfiller/FFL_TextField.h"
 #include "../../include/formfiller/FFL_CBA_Fontmap.h"
-//#include "../include/FFL_Notify.h"
-
-CFFL_EditUndoItem::CFFL_EditUndoItem(CPWL_Edit* pEdit)
-{
-}
-
-CFFL_EditUndoItem::~CFFL_EditUndoItem()
-{
-}
-
-void CFFL_EditUndoItem::Undo()
-{
-}
-
-void CFFL_EditUndoItem::Redo()
-{
-}
-
-CFX_WideString CFFL_EditUndoItem::GetDescr()
-{
-	return L"Input";
-}
-
-void CFFL_EditUndoItem::Release()
-{
-	delete this;
-}
 
 /* ------------------------------- CFFL_TextField ------------------------------- */