Remove unused imports from vyos_firewall_global (#67710)

Signed-off-by: Paul Belanger <pabelanger@redhat.com>

lib/ansible/module_utils/network/vyos/config/firewall_global/firewall_global.py

@@ -15,10 +15,10 @@ __metaclass__ = type
 
 from copy import deepcopy
 from ansible.module_utils.network.common.cfg.base import ConfigBase
-from ansible.module_utils.network.common.utils import to_list, dict_diff, remove_empties
+from ansible.module_utils.network.common.utils import to_list, remove_empties
 from ansible.module_utils.network.vyos.facts.facts import Facts
 from ansible.module_utils.six import iteritems
-from ansible.module_utils.network.vyos.utils.utils import list_diff_want_only, list_diff_have_only
+from ansible.module_utils.network.vyos.utils.utils import list_diff_want_only
 
 
 class Firewall_global(ConfigBase):

test/units/modules/network/vyos/test_vyos_firewall_global.py

@@ -19,7 +19,7 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from units.compat.mock import patch, MagicMock
+from units.compat.mock import patch
 from ansible.modules.network.vyos import vyos_firewall_global
 from units.modules.utils import set_module_args
 from .vyos_module import TestVyosModule, load_fixture