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

core/src/fpdfapi/fpdf_font/font_int.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
 
 typedef void* FXFT_Library;
 class CPDF_CMapManager : public CFX_Object
 {
 public:
     CPDF_CMapManager();
     ~CPDF_CMapManager();
     FX_LPVOID                           GetPackage(FX_BOOL bPrompt);
     CPDF_CMap*                          GetPredefinedCMap(const CFX_ByteString& name, FX_BOOL bPrompt);
     CPDF_CID2UnicodeMap*        GetCID2UnicodeMap(int charset, FX_BOOL bPrompt);
     void                                        ReloadAll();
 private:
     CPDF_CMap*                          LoadPredefinedCMap(const CFX_ByteString& name,  FX_BOOL bPrompt);
     CPDF_CID2UnicodeMap*        LoadCID2UnicodeMap(int charset, FX_BOOL bPrompt);
     void                                        DropAll(FX_BOOL bReload);
-#ifndef _FPDFAPI_MINI_
     FX_BOOL                                     m_bPrompted;
     FX_LPVOID                           m_pPackage;
-#endif
     CFX_MapByteStringToPtr      m_CMaps;
     CPDF_CID2UnicodeMap*        m_CID2UnicodeMaps[6];
 };
 class CPDF_FontGlobals : public CFX_Object
 {
 public:
     CPDF_FontGlobals();
     ~CPDF_FontGlobals();
     void                                ClearAll();
     void                                Clear(void* key);
@@ skipping 136 matching lines @@
     CPDF_CID2UnicodeMap();
     ~CPDF_CID2UnicodeMap();
     FX_BOOL             Initialize();
     FX_BOOL             IsLoaded();
     void                Load(CPDF_CMapManager* pMgr, int charset, FX_BOOL bPromptCJK);
     FX_WCHAR    UnicodeFromCID(FX_WORD CID);
 protected:
     int                 m_Charset;
     const FX_WORD*      m_pEmbeddedMap;
     FX_DWORD    m_EmbeddedCount;
-#ifndef _FPDFAPI_MINI_
     CPDF_FXMP*  m_pExternalMap;
-#endif
 };
 class CPDF_ToUnicodeMap : public CFX_Object
 {
 public:
     void                                        Load(CPDF_Stream* pStream);
     CFX_WideString                      Lookup(FX_DWORD charcode);
     FX_DWORD                            ReverseLookup(FX_WCHAR unicode);
 protected:
     CFX_CMapDWordToDWord        m_Map;
     CPDF_CID2UnicodeMap*        m_pBaseMap;
     CFX_WideTextBuf                     m_MultiCharBuf;
 };
 class CPDF_FontCharMap : public CFX_CharMap, public CFX_Object
 {
 public:
     CPDF_FontCharMap(CPDF_Font* pFont);
     CPDF_Font*          m_pFont;
 };