Remove warnings about Python 2 deprecation

acme/acme/__init__.py

@@ -6,7 +6,6 @@ This module is an implementation of the `ACME protocol`_.
 
 """
 import sys
-import warnings
 
 # This code exists to keep backwards compatibility with people using acme.jose
 # before it became the standalone josepy package.
@@ -20,10 +19,3 @@ for mod in list(sys.modules):
     # preserved (acme.jose.* is josepy.*)
     if mod == 'josepy' or mod.startswith('josepy.'):
         sys.modules['acme.' + mod.replace('josepy', 'jose', 1)] = sys.modules[mod]
-
-if sys.version_info[0] == 2:
-    warnings.warn(
-        "Python 2 support will be dropped in the next release of acme. "
-        "Please upgrade your Python version.",
-        PendingDeprecationWarning,
-    )  # pragma: no cover

certbot/certbot/__init__.py

@@ -1,13 +1,3 @@
 """Certbot client."""
-import warnings
-import sys
-
 # version number like 1.2.3a0, must have at least 2 parts, like 1.2
 __version__ = '1.12.0.dev0'
-
-if sys.version_info[0] == 2:
-    warnings.warn(
-        "Python 2 support will be dropped in the next release of Certbot. "
-        "Please upgrade your Python version.",
-        PendingDeprecationWarning,
-    )  # pragma: no cover

certbot/certbot/_internal/main.py

@@ -5,7 +5,6 @@ from __future__ import print_function
 import functools
 import logging.handlers
 import sys
-import warnings
 
 import configobj
 import josepy as jose
@@ -1404,13 +1403,6 @@ def main(cli_args=None):
         if config.func != plugins_cmd:  # pylint: disable=comparison-with-callable
             raise
 
-    if sys.version_info[0] == 2:
-        warnings.warn(
-            "Python 2 support will be dropped in the next release of Certbot. "
-            "Please upgrade your Python version.",
-            PendingDeprecationWarning,
-        )  # pragma: no cover
-
     set_displayer(config)
 
     # Reporter