Admin Bar Link Removal of Test Membership By ID

I don't see a setting for removing this blue test membership link from the admin bar, and I don't want my author's or editor's having access to it. How can I find the ID of this link that is added to the menu bar so that I can remove it. I have looked at the ID's on the rendered front end but they do not work? I saw another post were you talk about it, however it doesn't talk about how to find the ID I need to hide it.

Can you tell me what ID I should use for this. Is there a standard way to find the ID's of items added to the Admin Menu as links that are added though plug-ins. I already know the list that WP adds as default, I am looking for how to identify ones added by plugins.

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