/System/Library/ScriptingAdditions/ → Leave this folder as it is. These Additions are installed by macOS
Digital Hub Scripting.osax
StandardAdditions.osax
/Library/ScriptingAdditions/
Adobe Unit Types.osax → Installed by Adobe products. Check the version of the .osax (Finder Info), it should be 2.1.0. If it’s older then update it.
Default Folder X Addition.osax → See Chris’ (@ccstone) post above.
SIMBL.osax → Ditto.
~/Library/ScriptingAdditions/
TextExpander Addition.osax → Keep it if you’re using the Textexpander app.
I could delete textexpander which would be a pain because I have a library of snippets.
I think nobody has said you should delete Textexpander.