Clean up Unused Tables

Question

I have installed some analytics module for my drupal sites. Because it's on company's internal network, I couldn't use it. Now I have the tables created by the module sitting in my database (after I just forcefully removed the module folder from drupal installation).

Is there a way to clean unused tables in Drupal 7?

Note: I tried Schema, but it doesn't seem doing anything but displaying tables are in use and not used