issue #331 - Remove localStorage to FileSystem migration code

lib/filesystem/io.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 32 matching lines @@
 
   lineBreak: "\n",
 
   resolveFilePath: function(path)
   {
     return new FakeFile(path);
   },
 
   readFromFile: function(file, listener, callback, timeLineID)
   {
-    // Hack to allow importing old data
-    if (typeof file == "string")
-    {
-      var Utils = require("utils").Utils;
-      Utils.runAsync(function()
-      {
-        var lines = file.split(/[\r\n]+/);
-        for (var i = 0; i < lines.length; i++)
-          listener.process(lines[i]);
-        listener.process(null);
-        callback(null);
-      }.bind(this));
-      return;
-    }
-
     this._getFileEntry(file, false, function(fs, fileEntry)
     {
       fileEntry.file(function(file)
       {
         if (file.size == 0)
         {
           callback("File is empty");
           return;
         }
 
@@ skipping 95 matching lines @@
     {
       fileEntry.remove(function()
       {
         callback(null);
       }, callback);
     }, callback);
   },
 
   statFile: function(file, callback)
   {
-    // Hack to allow importing old data
-    if (typeof file == "string")
-    {
-      var Utils = require("utils").Utils;
-      Utils.runAsync(callback.bind(null, null, {
-        exists: true,
-        isDirectory: false,
-        isFile: true,
-        lastModified: 0
-      }));
-      return;
-    }
-
     // This needs to use Utils.runAsync(), otherwise FilterStorage might
     // initialize too early - see #337.
     require("utils").Utils.runAsync(function() {
       this._getFileEntry(file, false, function(fs, fileEntry)
       {
         fileEntry.getMetadata(function(metadata)
         {
           callback(null, {
             exists: true,
             isDirectory: fileEntry.isDirectory,
             isFile: fileEntry.isFile,
             lastModified: metadata.modificationTime.getTime()
           });
         }, callback);
       }, callback);
     }.bind(this));
   }
 };