Simplify PDFium by removing code that's not used in the open source repo.

core/src/fpdfapi/fpdf_font/fpdf_font_utility.cpp

 // 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
 
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_resource.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "font_int.h"
-#ifndef _FPDFAPI_MINI_
 typedef struct {
     FXSYS_FILE* m_pFile;
     int         m_nFiles;
     int         m_IndexSize;
     int         m_IndexOffset;
 } FXFC_PACKAGE;
 FX_LPVOID FXFC_LoadPackage(FX_LPCSTR name)
 {
     FXSYS_FILE* file = FXSYS_fopen(name, (FX_LPCSTR)"rb");
     if (file == NULL) {
@@ skipping 64 matching lines @@
 FX_LPBYTE CPDF_FXMP::GetRecord(FX_DWORD index)
 {
     if (m_pTable == NULL) {
         return NULL;
     }
     if ((int)index < (int)m_pHeader->dwStartIndex || index > m_pHeader->dwEndIndex) {
         return NULL;
     }
     return m_pTable + (index - m_pHeader->dwStartIndex) * m_pHeader->dwRecordSize;
 }
-#endif