Remove a few unused variables, functions, and tables.

core/src/fpdfapi/fpdf_font/fpdf_font_cid.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_page.h"
 #include "font_int.h"
 #include "../fpdf_cmaps/cmap_int.h"
@@ skipping 166 matching lines @@
             num = num * 10 + word.GetAt(i) - '0';
         }
     }
     return num;
 }
 static FX_BOOL _CMap_GetCodeRange(_CMap_CodeRange& range, FX_BSTR first, FX_BSTR second)
 {
     if (first.GetLength() == 0 || first.GetAt(0) != '<') {
         return FALSE;
     }
-    int num = 0;
     int i;
     for (i = 1; i < first.GetLength(); i ++)
         if (first.GetAt(i) == '>') {
             break;
         }
     range.m_CharSize = (i - 1) / 2;
     if (range.m_CharSize > 4) {
         return FALSE;
     }
     for (i = 0; i < range.m_CharSize; i ++) {
@@ skipping 1505 matching lines @@
         if (middlecode > CID) {
             end = middle - 1;
         } else if (middlecode < CID) {
             begin = middle + 1;
         } else {
             return &Japan1_VertCIDs[middle].a;
         }
     }
     return NULL;
 }