remove img upload button

app.py

@@ -172,8 +172,7 @@ def gradio_answer(chatbot, chat_state, img_list, num_beams, temperature):
 title = """
 <h1 align="center">Global-Local QFormer for Long Video Understanding with LLMs</h1>
 
-<h5 align="center">  Introduction: We introduce a Global-Local QFormer video model that is connected with a Large Language Model to understand
-                    and answer questions about long videos. To try out this demo, please upload a video and start the chat. </h5> 
+<h5 align="center">  Introduction: We introduce a Global-Local QFormer video model that is connected with a Large Language Model to understand and answer questions about long videos. To try out this demo, please upload a video and start the chat. </h5> 
 
 <div style='display:flex; gap: 0.25rem; '>
 <a href='https://huggingface.co/spaces/rxtan/Global-Local-QFormer-Video-LLM'><img src='https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-Spaces-blue'></a>