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

core/src/fxge/ge/fx_ge_fontmap.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/fxge/fx_ge.h"
 #include "../../../include/fxge/fx_freetype.h"
 #include "text_int.h"
 #define GET_TT_SHORT(w)  (FX_WORD)(((w)[0] << 8) | (w)[1])
@@ skipping 1290 matching lines @@
     m_PitchFamily = 0;
 }
 CFontFileFaceInfo::~CFontFileFaceInfo()
 {
     if (m_Face) {
         FXFT_Done_Face(m_Face);
     }
     m_Face = NULL;
 }
 extern FX_BOOL _LoadFile(FXFT_Library library, FXFT_Face* Face, IFX_FileRead* pFile, FXFT_Stream* stream);
-#if defined(_FPDFAPI_MINI_) || _FX_OS_ == _FX_ANDROID_
+#if _FX_OS_ == _FX_ANDROID_
 IFX_SystemFontInfo* IFX_SystemFontInfo::CreateDefault()
 {
     return NULL;
 }
 #endif
-#if !defined(_FPDFAPI_MINI_)
 CFX_FolderFontInfo::CFX_FolderFontInfo()
 {
 }
 CFX_FolderFontInfo::~CFX_FolderFontInfo()
 {
     FX_POSITION pos = m_FontList.GetStartPosition();
     while (pos) {
         CFX_ByteString key;
         FX_LPVOID value;
         m_FontList.GetNextAssoc(pos, key, value);
@@ skipping 212 matching lines @@
         return FALSE;
     }
     CFontFaceInfo* pFont = (CFontFaceInfo*)hFont;
     name = pFont->m_FaceName;
     return TRUE;
 }
 FX_BOOL CFX_FolderFontInfo::GetFontCharset(void* hFont, int& charset)
 {
     return FALSE;
 }
-#endif