Remove external mock dependency (#9331)

* Remove external mock dependency

This also removes the "external-mock" test environment

* remove superfluous ignores

* remove mock warning ignore from pytest.ini

* drop deps on mock in oldest, drop dep on types-mock

Co-authored-by: Alex Zorin <alex@zorin.id.au>

tools/pinning/current/pyproject.toml

@@ -50,13 +50,6 @@ awscli = ">=1.22.76"
 # as a dependency here to ensure a version of cython is pinned for extra
 # stability.
 cython = "*"
-# We install mock in our "external-mock" tox environment to test that we didn't
-# break Certbot's test API which used to always use mock objects from the 3rd
-# party mock library. We list the mock dependency here so that is pinned, but
-# we don't depend on it in Certbot to avoid installing mock when it's not
-# needed. This dependency can be removed here once Certbot's support for the
-# 3rd party mock library has been dropped.
-mock = "*"
 # poetry 1.2.0+ is required for it to pin pip, setuptools, and wheel. See
 # https://github.com/python-poetry/poetry/issues/1584. This version is required
 # here in addition to certbot/setup.py because otherwise the pre-release

tools/pinning/oldest/pyproject.toml

@@ -61,7 +61,6 @@ google-api-python-client = "1.5.5"
 httplib2 = "0.9.2"
 idna = "2.6"
 ipaddress = "1.0.16"
-mock = "1.0.1"
 ndg-httpsclient = "0.3.2"
 oauth2client = "4.0.0"
 parsedatetime = "2.4"