WireGuard Configurations Gone After iOS 15 Upgrade

[Jason A. Donenfeld]

Hi all,

I've got a new build submitted to the App Store, and so now we wait
for Apple's review.

I do not understand the root cause or how it might resolve itself yet,
because I haven't been able to reproduce. But I've removed the
ridiculous code that deletes network profiles when the keychain can't
be opened. My hope is that the open failure is transient, and so this
fix will be sufficient to unwedge it. I guess we'll see...

Jason