Remove MACRLCs.remote_s_portc/d: not used

Remove the gNB_MAC_INST.eth_params_s, since it's only purpose is to
store what can be on the stack.

For the Aerial log message, don't print an empty prefix but what is
actually used for Aerial.

nfapi/oai_integration/nfapi_vnf.c

@@ -1710,6 +1710,7 @@ void configure_nr_nfapi_vnf(eth_params_t params)
   vnf->p7_vnfs[0].aperiodic_timing_enabled = 0;
   vnf->p7_vnfs[0].periodic_timing_period = 1;
   vnf->p7_vnfs[0].config = nfapi_vnf_p7_config_create();
+  AssertFatal(params.remote_portc == 0 && params.remote_portd == 0, "remote ports not used, use 0\n");
 #ifndef ENABLE_AERIAL
   NFAPI_TRACE(NFAPI_TRACE_INFO,
               "[VNF] %s() vnf->p7_vnfs[0].config:%p VNF ADDRESS:%s:%d\n",