Remove dead code written for PHP 5.2
diff --git a/user_guide_src/source/general/hooks.rst b/user_guide_src/source/general/hooks.rst
index ffe3fef..6cc3407 100644
--- a/user_guide_src/source/general/hooks.rst
+++ b/user_guide_src/source/general/hooks.rst
@@ -56,8 +56,8 @@
- **params** Any parameters you wish to pass to your script. This item
is optional.
-If you're running PHP 5.3+, you can also use lambda/anoymous functions
-(or closures) as hooks, with a simpler syntax::
+You can also use lambda/anoymous functions (or closures) as hooks, with
+a simpler syntax::
$hook['post_controller'] = function()
{