Remove auth from Bitlbee

I'm having trouble getting PAM auth to work, so I'm temporarily disabling it.

TIL that I can use the following to verify that PAM is properly setup for a
program (e.g. `bitlbee`).

```
pamtester -v bitlbee $(whoami) authenticate
```

...but despite this succeeding, I still cannot use the `identify` command in
`bitlbee` to successfully authenticate. It just tells me "Incorrect password"
even though I'm providing it the same password that I type when doing the
`pamtester` command from above.

Computers!

1 files changed, 0 insertions, 1 deletions

diff --git a/nixos/socrates/configuration.nix b/nixos/socrates/configuration.nix
index 24013e4145ab..f48c4cf01db3 100644
--- a/nixos/socrates/configuration.nix
+++ b/nixos/socrates/configuration.nix
@@ -100,7 +100,6 @@ in {
   nixpkgs.config.bitlbee.enableLibPurple = true;
   services.bitlbee = {
     interface = "0.0.0.0";
-    authBackend = "pam";
     authMode = "Registered";
     enable = true;
     libpurple_plugins = [