allow non admins to delete their clients

src/modules/api/admin/oauth2-admin.controller.ts

@@ -312,7 +312,9 @@ export class OAuth2AdminController {
       );
     }
 
-    if (client.activated) {
+    const isAdmin = this._service.userHasPrivilege(user, 'admin:oauth2');
+
+    if (client.activated && isAdmin) {
       throw new BadRequestException('Please deactivate the client first.');
     }