Well, thats because that code has not been removed from stock code yet. You must have done a update running the update script or over rode all the files as no changes were applied to showflat.tpl for the security patch. Anytime you over ride a file you will need to re apply the fix.
I know SD said he was working on better design with twitter fb, and google +1 buttons so i am sure he will be removed from stock code when the next system update comes out.
