tests: removed old Callback

Author: dg

tests/Caching/FileStorage.closure.phpt

@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Test: Nette\Caching\Storages\FileStorage & Nette\Callback & Closure.
+ * Test: Nette\Caching\Storages\FileStorage
  *
  * @author     David Grudl
  */
@@ -33,19 +33,6 @@ Assert::same( $res, $value );
 Assert::same( $cache->load($key), $value );
 
 
-// Removing from cache using unset()...
-unset($cache[$key]);
-
-// Writing cache using Nette\Callback...
-$res = $cache->save($key, new Nette\Callback(function() use ($value) {
-	return $value;
-}));
-
-Assert::same( $res, $value );
-
-Assert::same( $cache->load($key), $value );
-
-
 // Removing from cache using NULL callback...
 $cache->save($key, function() {
 	return NULL;