hook for plugin_delete needed

I am developing a plugin where I create some additional database tables on installation/activation of the plugin. When the plugin is deleted, I want to cleanup these tables but I can’t find a hook to put in my cleanup routine. I only found one for plugin deactivation but I want to keep the tables until the plugin is deleted.

Is there any solution for that? How do other developers clean up their tables when a plugin is removed?

Marian