Remove openapi security definition code as it was swagger 2 specific

apigatewayauth/openapi.py

-from django.conf import settings
-
-API_SERVICE_CLIENT_CREDENTIALS = 'API Service OAuth2 Client Credentials'
-API_SERVICE_ACCESS_CODE = 'API Service OAuth2 Access Code'
-
-SCOPES_TO_DESCRIPTION = getattr(settings, 'API_GATEWAY_SCOPES_TO_DESCRIPTION', {})
-
-SECURITY_DEFINITIONS = {
-    API_SERVICE_CLIENT_CREDENTIALS: {
-        'type': 'oauth2',
-        'description': (
-            'Allows authentication using client credentials obtained from the API Service'
-        ),
-        'flow': 'application',  # should be `clientCredentials` when we update to OpenApi 3.0
-        'tokenUrl': 'https://<gateway_host>/oauth/client_credential/accesstoken'
-                    '?grant_type=client_credentials',
-        'scopes': SCOPES_TO_DESCRIPTION
-    },
-    API_SERVICE_ACCESS_CODE: {
-        'type': 'oauth2',
-        'flow': 'accessCode',
-        'authorizationUrl': 'https://<gateway_host>/oauth2/v1/auth',
-        'tokenUrl': 'https://<gateway_host>/oauth2/v1/token',
-        'scopes': SCOPES_TO_DESCRIPTION
-    }
-}
-
-
-def any_api_service_security_method_with_scopes(*scopes):
-    """
-    Helper method which returns security definitions for any API Service security
-    method with the given scopes.
-
-    """
-    return [
-        {security_method: list(scopes)}
-        for security_method in SECURITY_DEFINITIONS.keys()
-    ]

apigatewayauth/tests/test_openapi.py

-from django.test import TestCase
-
-from apigatewayauth.openapi import any_api_service_security_method_with_scopes
-
-
-class OpenAPITestCase(TestCase):
-
-    def test_any_api_service_security_method_with_scopes(self):
-        """
-        Test that the service definitions are returned for a given set of scopes.
-
-        """
-
-        self.assertListEqual(
-            any_api_service_security_method_with_scopes('read', 'write', 'admin'),
-            [
-                {
-                    'API Service OAuth2 Client Credentials': ['read', 'write', 'admin']
-                },
-                {
-                    'API Service OAuth2 Access Code': ['read', 'write', 'admin']
-                }
-            ]
-        )

setup.py

@@ -20,7 +20,7 @@ setup(
     long_description=open('README.md').read(),
     long_description_content_type='text/markdown',
     url='https://gitlab.developers.cam.ac.uk/uis/devops/django/api-gateway-auth',
-    version='0.0.1-rc1',
+    version='0.0.1-rc2',
     license='MIT',
     author='DevOps Division, University Information Services, University of Cambridge',
     author_email='devops@uis.cam.ac.uk',