A simple & easy to use module! Simply install the module and with a press of a button, all out of stock items are deleted! Tested on OC 22.214.171.124, this module should work fine on any 1.5.x editions.
If you have ANY questions/concerns/trouble leave a comment or email firstname.lastname@example.org. I will respond in 24 hours or less.
Special shout out to HostJars (teaching me how to make a module) & Opencart Forum user JdeJ (for the idea)