tweaking key setting.

laravel/core.php

@@ -64,18 +64,6 @@ if (isset($_SERVER['CLI']['ENV']))
 	$_SERVER['LARAVEL_ENV'] = $_SERVER['CLI']['ENV'];
 }
 
-/**
- * Call the bootstrap Closure that was defined in the start.php
- * file for the framework. This allows events and more to be
- * registered extremely early in the life cycle.
- */
-if (isset($bootstrap))
-{
-	call_user_func($bootstrap);
-
-	unset($bootstrap);
-}
-
 /**
  * Register all of the core class aliases. These aliases provide a
  * convenient way of working with the Laravel core classes without