fix docs build?

Author: gpshead

Misc/NEWS.d/next/Library/2024-05-20-12-35-52.gh-issue-115952.J6n_Kf.rst

@@ -5,5 +5,3 @@ allowed to execute is restricted by overriding the
 :meth:`~pickle.Unpickler.find_class` method.
 This could have led to symptoms including a :exc:`MemoryError`, swapping, out
 of memory (OOM) killed processes or containers, or even system crashes.
-
-.. note:: Regardless of improvements, :mod:`pickle` remains insecure for use on untrusted data.