How to get rid of the "Summary: " inserted by vc log-edit.el?

[Steinar Bang]

Platform: emacs 26

Is there a simple way to get rid of the "Summary: " tag inserted into
the comment buffer when making a commit with 'C-x v v'?

The first, and only, thing I do with the Summary: tag is to delete
it. And it would be nice not to have to.

But it doesn't look like this tag is configurable...?  And it wasn't all
that easy to find where it is set either.

The place I've found is set, are:
 When the author field is set
  http://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/vc/log-edit.el#n834
 When the Amend header is toggled
  http://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/vc/log-edit.el#n1179
 Possibly as a side effect of extracting headers from the commit message...?
  http://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/vc/log-edit.el#n1124

Or is it perhaps set in a completely different place?

Thanks!


- Steinar