Delete empty gradeX.script files

[Erin007]

While working on #28689, I found empty scripts so I'm deleting them. Looks like they were WIP placeholders before Course A-F were settled on for CSF.
I think they are safe to delete because no one would have made progress in them since they were never live.

[Erin007]

I found a script to delete .script files from the db but it looks old. Do I still need to do that step?

[davidsbailey]

Yes, if you're gonna delete these, please remove them from the database.

Scripts like this seem fine to delete as long as they were never "visible in teacher dashboard" a.k.a. never had hidden false in the script file.

[davidsbailey]

quick update: since these scripts were blanked out 2.5 years ago and don't have anything left in them that could contain progress anyway, it seems fine to remove them without checking the history for whether they ever had hidden false.

[joshlory]

Worth checking if there are any user levels that point to these Script IDs?

+1 for removing these from the production database as well! You could do a dry-run on staging or test.