nitb: Listen for incoming MNCC connections only once
There is no point in creating the MNCC socket twice. Only
create it if the user requested this when starting the nitb.
diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c
index 30474d2..739253b 100644
--- a/openbsc/src/osmo-nitb/bsc_hack.c
+++ b/openbsc/src/osmo-nitb/bsc_hack.c
@@ -266,7 +266,6 @@
if (rc < 0)
exit(1);
bsc_api_init(bsc_gsmnet, msc_bsc_api());
- mncc_sock_init(bsc_gsmnet);
/* seed the PRNG */
srand(time(NULL));