Removed Langchain dependency

pages/1_Prompt Engineering.py

@@ -2,8 +2,8 @@ import streamlit as st
 from openai import OpenAI
 import torch
 from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline
-from langchain.llms import HuggingFacePipeline
-from langchain import PromptTemplate, LLMChain
+#from langchain.llms import HuggingFacePipeline
+#from langchain import PromptTemplate, LLMChain
 # @st.cache_resource
 # def init_Phi2():
 #     torch.random.manual_seed(0)