bug#60740: 29.0.60; Broken isearch-emoji-by-name

[Juri Linkov]

>> I don't have the time to do that anymore.  It would probably be best to
>> remove this command from Emacs 29.0.90.
>
> Since the command works for many Emoji, I prefer to leave it and live
> with the known issues.

I disabled derived emoji in isearch-emoji-by-name,
so they don't cause the problems anymore in Emacs 29.

Leaving this bug report open to find a proper fix for master
if someone needs to select derived emoji.