Update app.py

Remove pip installs

app.py

@@ -1,6 +1,6 @@
 import os
-os.system("pip install --upgrade pip")
-os.system("pip install gradio==2.5.3")
+#os.system("pip install --upgrade pip")
+#os.system("pip install gradio==2.5.3")
 import onnxruntime as rt
 import sys
 import PIL