o2k: removed partial support for oauth2 (#5260)

* o2k: removed partial support for oauth2

* Fix fixtures

Co-authored-by: Filipe Freire <livrofubia@gmail.com>

packages/openapi-2-kong/README.md

@@ -564,9 +564,6 @@ Supported types are:
 
 - `oauth2`
   - NOT YET IMPLEMENTED!
-  - except for the implicit flow
-  - implemented using the Kong plugin `openid-connect`
-  - extended by: `x-kong-security-openid-connect`
 - `openIdConnect`
   - implemented using the Kong plugin `openid-connect`
   - extended by: `x-kong-security-openid-connect`
@@ -635,7 +632,7 @@ The `request-validator` plugin has three [parameters](https://docs.konghq.com/hu
 - `config.parameter_schema`
 - `config.allowed_content_types`
 
-If any of these are *not* specified in the `x-kong-plugin-request-validator.config` object in the OpenAPI spec, they will be generated if possible, otherwise will be configured to allow all body/parameter/content types.
+If any of these are _not_ specified in the `x-kong-plugin-request-validator.config` object in the OpenAPI spec, they will be generated if possible, otherwise will be configured to allow all body/parameter/content types.
 
 ```yaml
 paths:

packages/openapi-2-kong/src/declarative-config/fixtures/security.expected.json

@@ -13,13 +13,6 @@
           "strip_path": false,
           "tags": ["OAS3_import", "OAS3file_security.yaml"],
           "name": "Security_Example-only-oath2-get",
-          "plugins": [
-            {
-              "config": { "auth_methods": ["client_credentials"] },
-              "name": "openid-connect",
-              "tags": ["OAS3_import", "OAS3file_security.yaml"]
-            }
-          ],
           "paths": ["/only/oath2$"]
         },
         {
@@ -41,13 +34,6 @@
           "strip_path": false,
           "tags": ["OAS3_import", "OAS3file_security.yaml"],
           "name": "Security_Example-and-based-auth-get",
-          "plugins": [
-            {
-              "config": { "auth_methods": ["client_credentials"] },
-              "name": "openid-connect",
-              "tags": ["OAS3_import", "OAS3file_security.yaml"]
-            }
-          ],
           "paths": ["/and/based/auth$"]
         },
         {

packages/openapi-2-kong/src/declarative-config/security-plugins.ts

@@ -71,13 +71,6 @@ export const generateOpenIdConnectSecurityPlugin = (scheme: OpenAPIV3.OpenIdSecu
   return openIdConnectPlugin;
 };
 
-export const generateOAuth2SecurityPlugin = (): OpenIDConnectPlugin => ({
-  config: {
-    auth_methods: ['client_credentials'],
-  },
-  name: 'openid-connect',
-});
-
 export function generateSecurityPlugin(
   scheme: OA3SecurityScheme | null,
   args: string[],
@@ -99,10 +92,6 @@ export function generateSecurityPlugin(
       plugin = generateOpenIdConnectSecurityPlugin(scheme as OpenAPIV3.OpenIdSecurityScheme, args);
       break;
 
-    case 'oauth2':
-      plugin = generateOAuth2SecurityPlugin();
-      break;
-
     default:
       return null;
   }