ansible/compat/: PEP8 compliancy (#24689)

- Make PEP8 compliant

lib/ansible/compat/__init__.py

@@ -24,4 +24,3 @@ Compat library for ansible.  This contains compatibility definitions for older p
 When we need to import a module differently depending on python version, do it
 here.  Then in the code we can simply import from compat in order to get what we want.
 '''
-

lib/ansible/compat/tests/__init__.py

@@ -37,4 +37,3 @@ except ImportError:
     BUILTINS = 'builtins'
 else:
     BUILTINS = '__builtin__'
-

test/sanity/pep8/legacy-files.txt

@@ -14,9 +14,6 @@ lib/ansible/cli/galaxy.py
 lib/ansible/cli/playbook.py
 lib/ansible/cli/pull.py
 lib/ansible/cli/vault.py
-lib/ansible/compat/__init__.py
-lib/ansible/compat/selectors/__init__.py
-lib/ansible/compat/tests/__init__.py
 lib/ansible/constants.py
 lib/ansible/executor/__init__.py
 lib/ansible/executor/action_write_locks.py