removes dupe HTTPException in models

Author: parksjr

src/stapi_fastapi/models/shared.py

@@ -25,7 +25,3 @@ def model_dump_json(self: Self, *args, **kwargs) -> str:
         # forcing the call to model_dump_json to exclude unset fields by default
         kwargs["exclude_unset"] = kwargs.get("exclude_unset", True)
         return super().model_dump_json(*args, **kwargs)
-
-
-class HTTPException(BaseModel):
-    detail: str