How to get rid of extremely tacky nag notification to install Dashboard

I bought one of your plugins to install on a client site. All I'm interested in is delivering the functionality of that plugin to my client, preferably in as unobtrusive a fashion as possible. I uninstalled the Dashboard plugin because the client doesn't need access to it, but the plugin is adding notifications to the WP admin to install your Dashboard.

How do I get rid of these notifications without reinstalling your shitty dashboard? I don't expect things I pay for to have ads, that's incredibly tacky.