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

core/src/fxge/fx_freetype/fxft2.5.01/src/psnames/fxft_psmodule.c

 #if !defined(_FXFT_VERSION_) || _FXFT_VERSION_ == 2501
 /***************************************************************************/
 /*                                                                         */
 /*  psmodule.c                                                             */
 /*                                                                         */
 /*    PSNames module implementation (body).                                */
 /*                                                                         */
 /*  Copyright 1996-2003, 2005-2008, 2012, 2013 by                          */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
@@ skipping 150 matching lines @@
         return (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p );
       else
         return (FT_UInt32)( ft_get_adobe_glyph_index( glyph_name, dot ) |
                             VARIANT_BIT );
     }
   }
   #ifdef __cplusplus
 }
 #endif
 
-#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
 static int xyq_search_node(char* glyph_name, int name_offset, int table_offset, FT_UInt32 unicode)
 {
         int i, count;
 
         // copy letters
         while (1) {
                 glyph_name[name_offset] = ft_adobe_glyph_list[table_offset] & 0x7f;
                 name_offset ++;
                 table_offset ++;
                 if (!(ft_adobe_glyph_list[table_offset-1] & 0x80)) break;
@@ skipping 32 matching lines @@
         count = ft_adobe_glyph_list[1];
         for (i = 0; i < count; i ++) {
                 int child_offset = ft_adobe_glyph_list[i*2+2] * 256 + ft_adobe_glyph_list[i*2+3];
                 if (xyq_search_node(glyph_name, 0, child_offset, unicode))
                         return;
         }
 
         // failed, clear the buffer
         glyph_name[0] = 0;
 }
-#endif
 
   /* ft_qsort callback to sort the unicode map */
   FT_CALLBACK_DEF( int )
   compare_uni_maps( const void*  a,
                     const void*  b )
   {
     PS_UniMap*  map1 = (PS_UniMap*)a;
     PS_UniMap*  map2 = (PS_UniMap*)b;
     FT_UInt32   unicode1 = BASE_GLYPH( map1->unicode );
     FT_UInt32   unicode2 = BASE_GLYPH( map2->unicode );
@@ skipping 426 matching lines @@
     PUT_PS_NAMES_SERVICE(
       (void*)&PSCMAPS_INTERFACE_GET ),   /* module specific interface */
     (FT_Module_Constructor)NULL,
     (FT_Module_Destructor) NULL,
     (FT_Module_Requester)  PUT_PS_NAMES_SERVICE( psnames_get_service ) )
 
 
 /* END */
 #endif