[#33407] Alter code that deals with PHP 5.3.1-5.3.9 support

With the raise in support for 3.3 from PHP 5.3.1 to 5.3.10, there are places in the code base we can remove workarounds or checks dealing with PHP 5.3.1 to 5.3.9 support.  This PR does that.

http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=33407