Remove some dead code.

fpdfsdk/fxedit/include/fx_edit.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_FXEDIT_INCLUDE_FX_EDIT_H_
 #define FPDFSDK_FXEDIT_INCLUDE_FX_EDIT_H_
 
 #include "core/fpdfdoc/include/cpdf_variabletext.h"
@@ skipping 151 matching lines @@
 };
 
 class IFX_Edit {
  public:
   static IFX_Edit* NewEdit();
   static void DelEdit(IFX_Edit* pEdit);
 
   // set a IPVT_FontMap pointer implemented by user.
   virtual void SetFontMap(IPVT_FontMap* pFontMap) = 0;
 
-  // if user don't like to use FontMap, implement VTProvider and set it
-  // directly.
-  virtual void SetVTProvider(CPDF_VariableText::Provider* pProvider) = 0;
-
   // set a IFX_Edit_Notify pointer implemented by user.
   virtual void SetNotify(IFX_Edit_Notify* pNotify) = 0;
   virtual void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) = 0;
 
   // get a pointer allocated by CPDF_Edit, by this pointer, user can iterate the
   // contents of edit, but don't need to release.
   virtual IFX_Edit_Iterator* GetIterator() = 0;
 
   // get a VT pointer relative to this edit.
   virtual CPDF_VariableText* GetVariableText() = 0;
@@ skipping 434 matching lines @@
  protected:
   virtual ~IFX_List() {}
 };
 
 CFX_ByteString GetPDFWordString(IPVT_FontMap* pFontMap,
                                 int32_t nFontIndex,
                                 uint16_t Word,
                                 uint16_t SubWord);
 
 #endif  // FPDFSDK_FXEDIT_INCLUDE_FX_EDIT_H_