nit: remove unused import

Author: Tapan Chugh

src/mcp/server/elicitation.py

@@ -7,7 +7,6 @@
 from typing import Generic, Literal, TypeVar, Union, get_args, get_origin
 
 from pydantic import BaseModel
-from pydantic.fields import FieldInfo
 
 from mcp.server.session import ServerSession
 from mcp.types import RequestId