I have a site that had the Envato Toolkit plugin installed.
I saw a message “Warning: The Envato Toolkit plugin is no longer supported and will stop functioning very shortly. Please delete the Envato Toolkit plugin and install the Envato Market plugin. Click here for more details.”
So I uninstalled Envato Toolkit, and installed and activated Envato Market, but the message is still there at the top of the Dashboard.
In the Plugins screen, I see: