You can't delete them on the iPhone 5 or iPhone 4 or any idevice.
You can try sticking them in a folder or use stifflestand to stick newsstand in a folder.
I will not physically try to erase folders and apps like that. Some of those are vital for the rest of the OS to function right. And even though they are useless to some people if you delete them with SHSH you're risking getting stuck at the Apple logo or your phone running crappy.