Removing errant type annotation

app.py

@@ -42,7 +42,7 @@ with gr.Blocks() as demo:
     )
     detect_btn = gr.Button('Detect', visible=False)
 
-  def generate(*prompts) -> Sequence[str]:
+  def generate(*prompts):
     standard = [f'{prompt} response' for prompt in prompts]
     watermarked = [f'{prompt} watermarked response' for prompt in prompts]
     responses = standard + watermarked