Remove Python 2 specific code (#877)

* Get rid of Python 2 special handling.

* Get rid of more Python 2 specific handling.

* Stop using six.

* ipaddress is part of the standard library since Python 3.

* Add changelog.

* Fix import.

* Remove unneeded imports.

plugins/module_utils/time.py

@@ -6,7 +6,6 @@ from __future__ import annotations
 
 import datetime
 import re
-import sys
 
 from ansible.module_utils.common.text.converters import to_native
 from ansible_collections.community.crypto.plugins.module_utils.crypto.basic import (
@@ -68,29 +67,11 @@ def add_or_remove_timezone(timestamp, with_timezone):
     )
 
 
-if sys.version_info < (3, 3):
-
-    def get_epoch_seconds(timestamp):
-        epoch = datetime.datetime(
-            1970, 1, 1, tzinfo=UTC if timestamp.tzinfo is not None else None
-        )
-        delta = timestamp - epoch
-        try:
-            return delta.total_seconds()
-        except AttributeError:
-            # Python 2.6 and earlier: total_seconds() does not yet exist, so we use the formula from
-            # https://docs.python.org/2/library/datetime.html#datetime.timedelta.total_seconds
-            return (
-                delta.microseconds + (delta.seconds + delta.days * 24 * 3600) * 10**6
-            ) / 10**6
-
-else:
-
-    def get_epoch_seconds(timestamp):
-        if timestamp.tzinfo is None:
-            # timestamp.timestamp() is offset by the local timezone if timestamp has no timezone
-            timestamp = ensure_utc_timezone(timestamp)
-        return timestamp.timestamp()
+def get_epoch_seconds(timestamp):
+    if timestamp.tzinfo is None:
+        # timestamp.timestamp() is offset by the local timezone if timestamp has no timezone
+        timestamp = ensure_utc_timezone(timestamp)
+    return timestamp.timestamp()
 
 
 def from_epoch_seconds(timestamp, with_timezone):