Fix up some issues on feature validation for licenses

Also purging and fixing up some unit test behavior

awx/main/tests/conftest.py

@@ -1,6 +1,5 @@
 
 # Python
-import time
 import pytest
 import mock
 from contextlib import contextmanager

awx/main/tests/functional/api/test_settings.py

@@ -127,9 +127,6 @@ def test_radius_settings(get, put, patch, delete, admin, settings):
 def test_ui_settings(get, put, patch, delete, admin):
     url = reverse('api:setting_singleton_detail', kwargs={'category_slug': 'ui'})
     response = get(url, user=admin, expect=200)
-    assert 'CUSTOM_LOGO' not in response.data
-    assert 'CUSTOM_LOGIN_INFO' not in response.data
-    response = get(url, user=admin, expect=200)
     assert not response.data['CUSTOM_LOGO']
     assert not response.data['CUSTOM_LOGIN_INFO']
     put(url, user=admin, data=response.data, expect=200)

awx/main/tests/functional/core/test_licenses.py

@@ -5,7 +5,7 @@ from awx.main.utils.common import StubLicense
 
 
 def test_stub_license():
-    license_actual = StubLicense()
+    license_actual = StubLicense().validate()
     assert license_actual['license_key'] == 'OPEN'
     assert license_actual['valid_key']
     assert license_actual['compliant']

awx/main/tests/unit/test_access.py

@@ -1,11 +1,9 @@
 import pytest
 import mock
-import os
 
 from django.contrib.auth.models import User
 from django.forms.models import model_to_dict
 from rest_framework.exceptions import ParseError
-from rest_framework.exceptions import PermissionDenied
 
 from awx.main.access import (
     BaseAccess,