A very simple plugin that lets you clean up tables left over from previous deleted sites on a multisite installation. While WordPress will delete the tables it creates for a new site, tables created by plugins will remain.
This plugin adds a page under tools. In the textfield on this page, a list of site IDs can be given. The plugin will go through and delete all the tables that contain that ID.
Multiple IDs can be given my comma seperating them.
MIT License. A copy can be found in the root of this repository.