gh-95778: remove unneeded doc note on float.as_integer_ratio (GH-96553)

Per mdickinson@'s comment on the main branch PR.
(cherry picked from commit 69bb83c2)

Co-authored-by: Gregory P. Smith <greg@krypto.org>

Doc/library/stdtypes.rst

@@ -584,13 +584,6 @@ class`. float also has the following additional methods.
    :exc:`OverflowError` on infinities and a :exc:`ValueError` on
    NaNs.
 
-   .. note::
-
-      The values returned by ``as_integer_ratio()`` can be huge. Attempts
-      to render such integers into decimal strings may bump into the
-      :ref:`integer string conversion length limitation
-      <int_max_str_digits>`.
-
 .. method:: float.is_integer()
 
    Return ``True`` if the float instance is finite with integral