follow style from neighboring code

Author: AntonioYuen

pyiceberg/catalog/rest/response.py

@@ -101,10 +101,9 @@ def _handle_non_200_response(exc: HTTPError, error_handler: dict[int, type[Excep
             # Handle empty response bodies (Specifically HEAD requests via exist requests)
             if not exc.response.text:
                 response = f"{exception.__name__}: {exc.response.reason}"
-                raise exception(response) from exc
-
-            error = ErrorResponse.model_validate_json(exc.response.text).error
-            response = f"{error.type}: {error.message}"
+            else:
+                error = ErrorResponse.model_validate_json(exc.response.text).error
+                response = f"{error.type}: {error.message}"
     except JSONDecodeError:
         # In the case we don't have a proper response
         response = f"RESTError {exc.response.status_code}: Could not decode json payload: {exc.response.text}"