That database repair is not going to clean up anything. It repairs your database, it does not delete downloaded dependencies.
Deleting a route does not delete the downloaded dependencies. In case of a route with many dependencies, the route will be less then 10% of what you actually downloaded.
The thing you could do is this:
Check the date you downloaded the route. Check what assets you also downloaded that day. Delete those assets (but keep an eye out for those other things you downloaded that day that you might want to keep).
Deleting a route does not delete the downloaded dependencies. In case of a route with many dependencies, the route will be less then 10% of what you actually downloaded.
The thing you could do is this:
Check the date you downloaded the route. Check what assets you also downloaded that day. Delete those assets (but keep an eye out for those other things you downloaded that day that you might want to keep).