Python code modernization, 3/n (#1157)

* Remove __metaclass__ = type.

for i in $(grep -REl '__metaclass__ = type' plugins/ tests/); do
  sed -e '/^__metaclass__ = type/d' -i $i;
done

* Remove super arguments, and stop inheriting from object.

tests/unit/plugins/module_utils/_api/utils/test_build.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import os
 import os.path
 import shutil

tests/unit/plugins/module_utils/_api/utils/test_config.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import json
 import os
 import shutil

tests/unit/plugins/module_utils/_api/utils/test_decorators.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import unittest
 
 from ansible_collections.community.docker.plugins.module_utils._api.api.client import (

tests/unit/plugins/module_utils/_api/utils/test_json_stream.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 from ansible_collections.community.docker.plugins.module_utils._api.utils.json_stream import (
     json_splitter,
     json_stream,

tests/unit/plugins/module_utils/_api/utils/test_ports.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import unittest
 
 import pytest

tests/unit/plugins/module_utils/_api/utils/test_proxy.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import unittest
 
 from ansible_collections.community.docker.plugins.module_utils._api.utils.proxy import (

tests/unit/plugins/module_utils/_api/utils/test_utils.py

@@ -8,9 +8,6 @@
 
 from __future__ import annotations
 
-
-__metaclass__ = type
-
 import base64
 import json
 import os