Remove dead HTMLDecode code. Fixes jsdom#828.

Author: domenic

lib/jsdom/browser/htmlencoding.js

@@ -1476,20 +1476,6 @@ var entityRegExp = /&(?:#([0-9]+)|#x([0-9a-f]+)|([a-z0-9]+));/gi;
 var attributeModeSpecialCharRegExp = /["&<>\xA0]/g;
 var nonAttributeModeSpecialCharRegExp = /[&<>\xA0]/g;
 
-exports.HTMLDecode = function decode(s) {
-  if (!s) return '';
-  return s.replace(entityRegExp, function ($0, decimalStr, hexStr, entityName) {
-    if (decimalStr) {
-      return String.fromCharCode(parseInt(decimalStr, 10));
-    } else if (hexStr) {
-      return String.fromCharCode(parseInt(hexStr, 16));
-    } else {
-      // Fall back to the original string if we don't know the entity, as per browser behavior:
-      return charByEntityName[entityName] || $0;
-    }
-  });
-};
-
 function specialCharToEntity(s) {
   var entity = specialCharEntities[s];
   return entity ? entity : s;

lib/jsdom/browser/htmltodom.js

@@ -1,5 +1,3 @@
-var HTMLDecode = require('./htmlencoding').HTMLDecode;
-
 function HtmlToDom(parser) {
 
   if(parser && parser.write) {

lib/jsdom/browser/index.js

@@ -2,9 +2,6 @@ var http          = require('http'),
     URL           = require('url'),
     HtmlToDom     = require('./htmltodom').HtmlToDom,
     domToHtml     = require('./domtohtml').domToHtml,
-    htmlencoding  = require('./htmlencoding'),
-    HTMLEncode    = htmlencoding.HTMLEncode,
-    HTMLDecode    = htmlencoding.HTMLDecode,
     jsdom         = require('../../jsdom'),
     Location      = require('./location'),
     History       = require('./history'),

lib/jsdom/level3/core.js

@@ -3,10 +3,7 @@ var events        = require("../level2/events"),
     defineGetter  = require('../utils').defineGetter,
     defineSetter  = require('../utils').defineSetter,
     HtmlToDom     = require('../browser/htmltodom').HtmlToDom,
-    domToHtml     = require('../browser/domtohtml').domToHtml,
-    htmlencoding  = require('../browser/htmlencoding'),
-    HTMLEncode    = htmlencoding.HTMLEncode,
-    HTMLDecode    = htmlencoding.HTMLDecode;
+    domToHtml     = require('../browser/domtohtml').domToHtml;
 
 // modify cloned instance for more info check: https://github.com/tmpvar/jsdom/issues/325
 core = Object.create(core);