osmo-hnbgw: drop erratic log line on remote STP address

The stp_host is just the *default* that may be overridden by the VTY
configuration. Don't log it as the one that is going to be used.

It's not trivial to print the actual IP address being used, there may be any
number of ASP, theoretically. Hence leave logging up to
osmo_sccp_simple_client_on_ss7_id(), after another hypothetical patch.

Change-Id: Ia438143606913faccc8cdf4fd5f7d376f93e7891
diff --git a/src/hnbgw_cn.c b/src/hnbgw_cn.c
index 3b828b4..81ef670 100644
--- a/src/hnbgw_cn.c
+++ b/src/hnbgw_cn.c
@@ -474,8 +474,6 @@
 	local_pc = ss7->cfg.primary_pc;
 
 	osmo_sccp_make_addr_pc_ssn(&gw->sccp.local_addr, local_pc, OSMO_SCCP_SSN_RANAP);
-
-	LOGP(DRANAP, LOGL_NOTICE, "M3UA uplink to STP: %s %u\n", stp_host, stp_port);
 	LOGP(DRANAP, LOGL_NOTICE, "Local SCCP addr: %s\n", osmo_sccp_addr_name(ss7, &gw->sccp.local_addr));
 
 	gw->sccp.client = osmo_sccp_simple_client_on_ss7_id(gw, ss7->cfg.id, "OsmoHNBGW",