module_utils.common.*: removed unused objects (#59570)

changelogs/fragments/59570-module_utils_remove_unused_objects.yml

@@ -0,0 +1,2 @@
+bugfixes:
+- module_utils - remove unused objects from dict_transformations, removed, and sys_info modules (https://github.com/ansible/ansible/pull/59570)

lib/ansible/module_utils/common/dict_transformations.py

@@ -86,7 +86,6 @@ def _camel_to_snake(name, reversible=False):
     def prepend_underscore_and_lower(m):
         return '_' + m.group(0).lower()
 
-    import re
     if reversible:
         upper_pattern = r'[A-Z]'
     else:

lib/ansible/module_utils/common/removed.py

@@ -31,7 +31,7 @@ def removed_module(removed_in, msg='This module has been removed. The module doc
     version = removed_in.split('.')
     try:
         numeric_minor = int(version[-1])
-    except Exception as e:
+    except Exception:
         last_version = None
     else:
         version = version[:-1]

lib/ansible/module_utils/common/sys_info.py

@@ -5,7 +5,6 @@
 from __future__ import absolute_import, division, print_function
 __metaclass__ = type
 
-import os
 import platform
 
 from ansible.module_utils import distro