Update app.py

app.py

@@ -14,7 +14,7 @@ sys.path.append('/home/user/app/code')
 os.system('git clone https://github.com/BachiLi/diffvg.git')
 os.chdir('diffvg')
 os.system('git submodule update --init --recursive')
-os.system('sudo -i python setup.py install --user')
+os.system('python setup.py install --user')
 sys.path.append("/home/user/.local/lib/python3.8/site-packages/diffvg-0.0.1-py3.8-linux-x86_64.egg")
 
 os.chdir('/home/user/app')