Sounds to me like the plugin is automatically adding that to your wp_footer.
It would probably have something like this in the plugin:
add_action('wp_footer', .....
It’s not generally a good idea though to go editing a plugin to remove this. You could find the name of the add_action (if it is using that) and use a remove_action:
http://codex.wordpress.org/Function_Reference/remove_action
Otherwise, it probably is worth checking out if the plugin has some support that could help you without you having to go hunting in files.
Thanks karmatosed for your response. Could you please delve a bit into how to use remove_action?
