fix(deletions): Fix event attachment and user report deletions (#15295)
fix(deletions): Fix event attachment and user report deletions (#15295)

This went unnoticed since they are currently (temporarily) being deleted
from event deletions as well.

I reran the tests with event deletions turned off to verify this works
without relying on event deletions.
beeftornado/sentry,beeftornado/sentry,beeftornado/sentry