PEP 694: Fix Sphinx warnings

Author: Secrus

peps/pep-0694.rst

@@ -1098,9 +1098,6 @@ as experience is gained operating Upload 2.0.
               <https://docs.python.org/3/library/hashlib.html#hashlib.new>`_ ``hashlib.new()`` and
               which does not require additional parameters.
 
-.. [#fn-immutable] Published files may still be yanked (i.e. :pep:`592`) or `deleted
-                   <https://pypi.org/help/#file-name-reuse>`__ as normal.
-
 
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