osmo-bsc: Remove 'auth policy' cmd from config

As of osmo-bsc ad47f7108aff5438bd2c6f7c0e898f4aa3b66fbe, this command
has been dropped and is no longer recognized.

Change-Id: Id97074195f045e6872a1a7030671a06259c9ec31
diff --git a/example/defaults.conf b/example/defaults.conf
index 86223d1..5517212 100644
--- a/example/defaults.conf
+++ b/example/defaults.conf
@@ -13,7 +13,6 @@
     mnc: 70
     short_name: osmo-gsm-tester-msc
     long_name: osmo-gsm-tester-msc
-    auth_policy: closed
     encryption: a5_0
     authentication: optional
 
diff --git a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
index 1b21e63..c1f3cc7 100644
--- a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
@@ -31,7 +31,6 @@
  mobile network code ${bsc.net.mnc}
  short name ${bsc.net.short_name}
  long name ${bsc.net.long_name}
- auth policy ${bsc.net.auth_policy}
  location updating reject cause 13
  encryption ${bsc.net.encryption}
  authentication ${bsc.net.authentication}