revert last commit, change version in readme

README.md

@@ -4,10 +4,10 @@ emoji: 🏃
 colorFrom: gray
 colorTo: purple
 sdk: gradio
-sdk_version: 4.44.0
+sdk_version: 4.42.0
 app_file: app.py
 pinned: false
 license: apache-2.0
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+Check out the configuration reference at <https://huggingface.co/docs/hub/spaces-config-reference>

app.py

@@ -1,5 +1,3 @@
-import os
-
 import gradio as gr
 import spaces
 import torch
@@ -11,9 +9,6 @@ from huggingface_hub import hf_hub_download
 from controlnet_union import ControlNetModel_Union
 from pipeline_fill_sd_xl import StableDiffusionXLFillPipeline
 
-os.system("pip uninstall -y gradio")
-os.system("pip install gradio==4.42.0")
-
 MODELS = {
     "RealVisXL V5.0 Lightning": "SG161222/RealVisXL_V5.0_Lightning",
 }