fix: fix the app max_active_requests been overwritten bug (#16513)

api/controllers/console/app/app.py

         parser.add_argument("icon_type", type=str, location="json")
         parser.add_argument("icon", type=str, location="json")
         parser.add_argument("icon_background", type=str, location="json")
-        parser.add_argument("max_active_requests", type=int, location="json")
         parser.add_argument("use_icon_as_answer_icon", type=bool, location="json")
         args = parser.parse_args()
 

api/services/app_service.py

 from configs import dify_config
 from constants.model_template import default_app_templates
 from core.agent.entities import AgentToolEntity
-from core.app.features.rate_limiting import RateLimit
 from core.errors.error import LLMBadRequestError, ProviderTokenNotInitError
 from core.model_manager import ModelManager
 from core.model_runtime.entities.model_entities import ModelPropertyKey, ModelType
         """
         app.name = args.get("name")
         app.description = args.get("description", "")
-        app.max_active_requests = args.get("max_active_requests")
         app.icon_type = args.get("icon_type", "emoji")
         app.icon = args.get("icon")
         app.icon_background = args.get("icon_background")
         app.updated_at = datetime.now(UTC).replace(tzinfo=None)
         db.session.commit()
 
-        if app.max_active_requests is not None:
-            rate_limit = RateLimit(app.id, app.max_active_requests)
-            rate_limit.flush_cache(use_local_value=True)
         return app
 
     def update_app_name(self, app: App, name: str) -> App: