The CE and CY fonts are part of the Geneva font itself. Same with
Times CE, etc., is part of Times. Remember back when fonts were in
suitcases and you could open a suitcase and remove (or add) fonts?
Same idea. The only way I've found to get rid of the CE and CY fonts
from the Font Menu is to replace the Geneva.dfont with one of the
older Genevas such as Geneva.tt. This worked fine in 10.3 but I
haven't tried it yet in 10.5. Seems the System (at least up to 10.3)
doesn't care if the font is .dfont, TrueType, or PostScript as long as
it is Geneva (or Times, etc.).
The CE and CY fonts do show up in other programs. Canvas X is one.
What I'd like to do is get rid of Geeza, STHeiti, etc., too, but they
are "required" by the System.
And why do I have to keep Courier when I also have Courier New (which
I can disable)? Isn't "New" better? For that matter, why does
Illustrator show 3 versions of Courier when I have only one active?
You would think that the programmers would have sorted this mess out
long ago!