remove duplicate flag for cell barring

it's sufficient if we keep the state of cell barring in one place
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 8769558..9d2549c 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -381,7 +381,6 @@
 	/* should the channel allocator allocate channels from high TRX to TRX0,
 	 * rather than starting from TRX0 and go upwards? */
 	int chan_alloc_reverse;
-	int cell_barred;
 	/* maximum Tx power that the MS is permitted to use in this cell */
 	int ms_max_power;
 
diff --git a/openbsc/src/bsc_init.c b/openbsc/src/bsc_init.c
index 48d90d7..86a93a1 100644
--- a/openbsc/src/bsc_init.c
+++ b/openbsc/src/bsc_init.c
@@ -804,7 +804,7 @@
 	}
 
 	if (bts->network->auth_policy == GSM_AUTH_POLICY_ACCEPT_ALL &&
-	    !bts->cell_barred)
+	    !bts->si_common.rach_control.cell_bar)
 		LOGP(DNM, LOG_ERROR, "\nWARNING: You are running an 'accept-all' "
 			"network on a BTS that is not barred.  This "
 			"configuration is likely to interfere with production "
@@ -815,8 +815,6 @@
 	bts->si_common.chan_desc.att = 1;
 	bts->si_common.chan_desc.ccch_conf = RSL_BCCH_CCCH_CONF_1_C;
 	bts->si_common.chan_desc.bs_pa_mfrms = RSL_BS_PA_MFRMS_5;
-	if (bts->cell_barred)
-		bts->si_common.rach_control.cell_bar = 1;
 	/* T3212 is set from vty/config */
 
 	/* some defaults for our system information */
diff --git a/openbsc/src/vty_interface.c b/openbsc/src/vty_interface.c
index 0e518ef..b13dc5f 100644
--- a/openbsc/src/vty_interface.c
+++ b/openbsc/src/vty_interface.c
@@ -140,7 +140,7 @@
 		VTY_NEWLINE);
 	vty_out(vty, "Cell Reselection Hysteresis: %u dBm%s",
 		bts->si_common.cell_sel_par.cell_resel_hyst*2, VTY_NEWLINE);
-	if (bts->cell_barred)
+	if (bts->si_common.rach_control.cell_bar)
 		vty_out(vty, "  CELL IS BARRED%s", VTY_NEWLINE);
 	if (is_ipaccess_bts(bts))
 		vty_out(vty, "  Unit ID: %u/%u/0, OML Stream ID 0x%02x%s",
@@ -258,7 +258,7 @@
 	vty_out(vty, "  channel allocator %s%s",
 		bts->chan_alloc_reverse ? "descending" : "ascending",
 		VTY_NEWLINE);
-	if (bts->cell_barred)
+	if (bts->si_common.rach_control.cell_bar)
 		vty_out(vty, "  cell barred 1%s", VTY_NEWLINE);
 	if (is_ipaccess_bts(bts)) {
 		vty_out(vty, "  ip.access unit_id %u %u%s",
@@ -1202,7 +1202,7 @@
 {
 	struct gsm_bts *bts = vty->index;
 
-	bts->cell_barred = atoi(argv[0]);
+	bts->si_common.rach_control.cell_bar = atoi(argv[0]);
 
 	return CMD_SUCCESS;
 }