Noissue - Cleanup. Remove last remnants of old thread code.

test/FileSystemJsObject.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <sstream>
 #include "BaseJsTest.h"
-#include "../src/Thread.h"
 
 using namespace AdblockPlus;
 
 namespace
 {
   class MockFileSystem : public AdblockPlus::IFileSystem
   {
   public:
     bool success;
     IOBuffer contentToRead;
@@ skipping 367 matching lines @@
   (error) =>
   {
     if (error)
       _triggerEvent("onDone", error);
     else
       _triggerEvent("onDone");
 });)js");
   EXPECT_EQ(2u, readLines.size());
   EXPECT_EQ("Error: my-error at undefined:8", error);
 }