[Python-checkins] Remove outdated and confusing advice about setting maxsize (GH-19889) (GH-19890)

[Miss Islington (bot)]

https://github.com/python/cpython/commit/9609460ce0b71215eff2d057b6780950e00be013
commit: 9609460ce0b71215eff2d057b6780950e00be013
branch: 3.8
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2020-05-03T17:16:36-07:00
summary:

Remove outdated and confusing advice about setting maxsize (GH-19889) (GH-19890)

files:
M Doc/library/functools.rst

diff --git a/Doc/library/functools.rst b/Doc/library/functools.rst
index 3a0b554e923c7..0fb8d900c7362 100644
--- a/Doc/library/functools.rst
+++ b/Doc/library/functools.rst
@@ -101,8 +101,7 @@ The :mod:`functools` module defines the following functions:
            return sum(sentence.count(vowel) for vowel in 'aeiou')
 
    If *maxsize* is set to ``None``, the LRU feature is disabled and the cache can
-   grow without bound.  The LRU feature performs best when *maxsize* is a
-   power-of-two.
+   grow without bound.
 
    If *typed* is set to true, function arguments of different types will be
    cached separately.  For example, ``f(3)`` and ``f(3.0)`` will be treated