Remove orphan directory and code

[kiatng]

• Directory includes in the root is used by the compiler, which was removed in PR removed Mage_Compiler #534.
• Code that reference it should be removed

magento-lts/index.php.sample

Lines 34 to 40 in 4d2ce08

	/**
	* Compilation includes configuration file
	*/
	$compilerConfig = 'includes/config.php';
	if (file_exists($compilerConfig)) {
	include $compilerConfig;
	}

• Line 492
  

  magento-lts/app/code/core/Mage/Core/etc/config.xml

  Lines 486 to 498 in 4d2ce08

  	<public_files_valid_paths>
  	<protected>
  	<app>/app/*/*</app>
  	<dev>/dev/*/*</dev>
  	<downloader>/downloader/*/*</downloader>
  	<errors>/errors/*/*</errors>
  	<includes>/includes/*/*</includes>
  	<js>/js/*/*</js>
  	<lib>/lib/*/*</lib>
  	<shell>/shell/*/*</shell>
  	<skin>/skin/*/*</skin>
  	</protected>
  	</public_files_valid_paths>

• Line 492 above also can be removed, since downloader was removed in PR Remove Magento Connect, Downloader and PEAR. #952.

[addison74]

You may close this one if there is already a PR for it.