tempor

This plugin removes the unobtrusive footer text installed by “Ozh Admin Drop Down Menu” in the backend (admin) of wordpress.

Remove Ozh unobstrusive credits in footer

It still works with at least wordpress 4.9.3 version.

Great!

Removes Ozh footer text from the admin backend. Author: Polemos

Personalize, if not humanize, your posts, adding (CSS) popups containings avatars next to mailto links, as well as next to any word. You can chose avatar images, or let Gravatar chose it for you.
For documentation and tips, please refer to the official plugin page for <a href="http://planetozh.com/blog/my-projects/wordpress-plugin-avatar-gravatar-popup/" title="Avatar Popup" rel="nofollow ugc">Avatar Popup</a>

Ozh' Avatar Popup

Add CSS popups next to mailto links or next to any word. Can be any custom image, and has gravatar support.

Remove Ozh unobstrusive credits in footer vs Ozh' Avatar Popup