Remove sectionauthor and moduleauthor documentation

Author: StanFromIreland

documentation/markup.rst

@@ -349,22 +349,6 @@ they are used in the Python documentation.
    <https://www.sphinx-doc.org/>`__.
 
 
-Meta-information markup
------------------------
-
-.. describe:: sectionauthor
-
-   Identifies the author of the current section.  The argument should include
-   the author's name such that it can be used for presentation (though it isn't)
-   and email address.  The domain name portion of the address should be lower
-   case.  Example::
-
-      .. sectionauthor:: Guido van Rossum <guido@python.org>
-
-   Currently, this markup isn't reflected in the output in any way, but it helps
-   keep track of contributions.
-
-
 Module-specific markup
 ----------------------
 
@@ -403,12 +387,6 @@ As you can see, the module-specific markup consists of two directives, the
    The ``deprecated`` option can be given (with no value) to mark a module as
    deprecated; it will be designated as such in various locations then.
 
-.. describe:: moduleauthor
-
-   The ``moduleauthor`` directive, which can appear multiple times, names the
-   authors of the module code, just like ``sectionauthor`` names the author(s)
-   of a piece of documentation.  It too does not result in any output currently.
-
 .. note::
 
    It is important to make the section title of a module-describing file