chore: remove unused imports

Author: ranst91

typescript-sdk/integrations/langgraph/examples/python/agents/human_in_the_loop/agent.py

@@ -11,8 +11,6 @@
 from langgraph.types import Command, interrupt
 from langgraph.graph import MessagesState
 
-from copilotkit.langgraph import copilotkit_emit_state, copilotkit_interrupt
-
 # LLM imports
 from langchain_openai import ChatOpenAI
 from langchain_core.messages import SystemMessage