Chinese drew a method to delete the Setup.app the ios 8 in all idevices perhaps for many a bit late but here is the program.
How does it work:
1.install Ronda.ocx Suitable for the ocx if the bypass does not open
2.Only works on windows 7
3.Only works on ios 8 All idevice
4.No suported ios7 ios8.1.2 ios8.1.3
5. install Netfremworck 4.5
6 Put your device in DFU Mod If you have problem with us contact us and we help you to remove setup.app to your device.