How do I remove a certificate from Certificate Trust Settings if the profile doesn't exist?
I'm on iOS 13.3. I tested this using non-orphaned certificates in hopes of isolating the issue to see what is the minimum option you can use to remove these certificates.

Works:


Assuming you have the profile (i.e. non-orphaned): Settings > Profile > (Profile) > Remove
Nuclear option (deleting everything on your phone): Settings > General > Reset > Erase all content and settings


Doesn't work:


Settings > General > Reset > Reset network settings
Settings > General > Reset > Reset all settings