Remove the isolation-specific settings

- AWX_ISOLATED_PUBLIC_KEY
- AWX_ISOLATED_PRIVATE_KEY
- AWX_ISOLATED_KEY_GENERATION
- AWX_ISOLATED_HOST_KEY_CHECKING
- AWX_ISOLATED_USERNAME
- AWX_ISOLATED_CONNECTION_TIMEOUT
- AWX_ISOLATED_LAUNCH_TIMEOUT
- AWX_ISOLATED_PERIODIC_CHECK
- AWX_ISOLATED_CHECK_INTERVAL

awx/conf/settings.py

@@ -350,13 +350,8 @@ class SettingsWrapper(UserSettingsHolder):
         if value is empty:
             setting = None
             setting_id = None
-            if not field.read_only or name in (
-                # these values are read-only - however - we *do* want
-                # to fetch their value from the database
-                'INSTALL_UUID',
-                'AWX_ISOLATED_PRIVATE_KEY',
-                'AWX_ISOLATED_PUBLIC_KEY',
-            ):
+            # this value is read-only, however we *do* want to fetch its value from the database
+            if not field.read_only or name == 'INSTALL_UUID':
                 setting = Setting.objects.filter(key=name, user__isnull=True).order_by('pk').first()
             if setting:
                 if getattr(field, 'encrypted', False):