refactor: Removed unused imports

Removed unused imports from openedx/core/djangoapps/{api_admin, catalog, ccxcon, certificates}

openedx/core/djangoapps/api_admin/management/commands/tests/test_create_api_access_request.py

@@ -7,8 +7,6 @@ from django.contrib.sites.models import Site
 from django.core.management import call_command
 from django.core.management.base import CommandError
 from django.test import TestCase
-
-from openedx.core.djangoapps.api_admin.management.commands import create_api_access_request
 from openedx.core.djangoapps.api_admin.models import ApiAccessConfig, ApiAccessRequest
 from common.djangoapps.student.tests.factories import UserFactory
 

openedx/core/djangoapps/catalog/management/commands/tests/test_create_catalog_integrations.py

 """
 Test cases for catalog_integrations command.
 """
-
 import pytest
-from django.test import TestCase  # lint-amnesty, pylint: disable=unused-import
 from django.core.management import call_command, CommandError
 
 from openedx.core.djangolib.testing.utils import CacheIsolationTestCase

openedx/core/djangoapps/catalog/utils.py

@@ -14,7 +14,6 @@ from opaque_keys.edx.keys import CourseKey
 from pytz import UTC
 
 from common.djangoapps.entitlements.utils import is_course_run_entitlement_fulfillable
-from openedx.core.constants import COURSE_PUBLISHED  # lint-amnesty, pylint: disable=unused-import
 from openedx.core.djangoapps.catalog.cache import (
     COURSE_PROGRAMS_CACHE_KEY_TPL,
     CATALOG_COURSE_PROGRAMS_CACHE_KEY_TPL,

openedx/core/djangoapps/certificates/api.py

@@ -5,7 +5,6 @@ The public API for certificates.
 
 import logging
 from datetime import datetime
-
 from pytz import UTC
 
 from lms.djangoapps.certificates.models import CertificateStatuses, CertificateWhitelist

openedx/core/djangoapps/certificates/tests/test_api.py

-import itertools
+
 from contextlib import contextmanager
-from datetime import datetime, timedelta
+from datetime import datetime
 
 import ddt
 import pytz
-import waffle
 from django.test import TestCase
 from edx_toggles.toggles import LegacyWaffleSwitch
 from edx_toggles.toggles.testutils import override_waffle_switch