MNCC: remove 'upqueue'

The MNCC messages now again get directly handled by the net->mncc_recv()
callback.  If the callee wants to put them in a queue, it' his business
to do that.
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index 66a9aaa..8e19b14 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -246,6 +246,7 @@
 	if (rc < 0)
 		exit(1);
 	bsc_api_init(bsc_gsmnet, msc_bsc_api());
+	mncc_sock_init(bsc_gsmnet);
 
 	/* seed the PRNG */
 	srand(time(NULL));
@@ -286,7 +287,6 @@
 	}
 
 	while (1) {
-		bsc_upqueue(bsc_gsmnet);
 		log_reset_context();
 		bsc_select_main(0);
 	}