How to remove an EV Server from your site

hi

so we have an old site with ev 6. have followed your instructions above but when i try to remove the services it says

"this service cannot be removed at the moment because it has data associated with it. If you do not want the data, delete it and then you can remove the service"

ive set the sql entries as above and its still no dice. i dont need the data but as it has already been removed im not sure why its complaining. anyone have an idea as to what the data is??

we are not migrating or anything just a straight decom.