Remove unused imports and clean up generate_item_image function in app.py

app.py

@@ -18,7 +18,7 @@ from trellis.pipelines import TrellisImageTo3DPipeline
 from trellis.representations import Gaussian, MeshExtractResult
 from trellis.utils import render_utils, postprocessing_utils
 from gradio_client import Client
-from diffusers import FluxPipeline, AutoencoderKL, AutoencoderTiny
+from diffusers import FluxPipeline
 from live_preview_helpers import flux_pipe_call_that_returns_an_iterable_of_images
 
 llm_client = Client("Qwen/Qwen2.5-72B-Instruct")
@@ -109,9 +109,6 @@ def generate_item_image(object_t2i_prompt):
     trial_id, processed_image = preprocess_pil_image(image)
     yield trial_id, processed_image
 
-generate_item_image("A vintage golden pocket watch with intricate floral engravings, polished metal, and Roman numerals on its clock face. Its chain is smooth and reflective, completing the elegant design.")
-print("Done")
-
 def pack_state(gs: Gaussian, mesh: MeshExtractResult, trial_id: str) -> dict:
     return {
         'gaussian': {