Uninstall Piwik, remove tracking code?

I want to uninstall Piwik. The FAQs say to remove the tracker code first. I’ve run Piwik for about 2 years in a blog (using WP-Piwik) with new posts every day, so removing the code manually is not an option. Will there be an error if I remove the Piwik tables in the Database without removing the tracker code? Thank you.

if you use WP-piwik, simply disable WP-piwik and the tracking code will be removed automatically