bug#53316: 28.0.91; Missing Transient manual in Emacs

[Glenn Morris]

>> I believe it is a bug for Emacs not to distribute the preferred form for
>> modification.

See previous identical issue https://debbugs.gnu.org/45143
Especially https://debbugs.gnu.org/45143#14

  That is a moral fault. We must distribute the real source code, always
  without exception.

> And I don't think it makes sense to add the org file if some of the
> code needed to produce the texi file are not available inside Emacs.
> Eli would just have had to fix many more issues manually.

Then IMO this manual should not be distributed with Emacs, until such
time as the required build machinery can be.