I want to remove ratings from the TVDB scraper

My goal: prevent the TVDB scraper from fetching ratings.

Why? I already deleted the ratings from the .xml files in the Confluence folder, so they do not show. However, XBMC Remote on my iPhone still does display the ratings for episodes. I think the only solution to prevent this would be by removing the ratings from the scraper.

To do this, I first need to know which file is handling the 'ordering' of metadata so I can change it. I thought this would be:

C:\Program Files (x86)\XBMC\addons\metadata.tvdb.com\tvdb.xml

But it's not. Even if I delete this .xml file, the scraper still works. I also tried deleting the metadata from the %appdata%-folder, but this also has no effect, the scraper continues to work flawlessly.

I took a look at the wiki, but that's not helping me. I really am clueless on how to achieve my goal.

So my questions:

1. Which file handles the ordering of metadata for episodes?
2. How do I alter this file so that it does not store rating information in the database?

Thank you very much in advance.