keep lcr_gw.group_id column for now..

we can't drop it without adjusting triggers on provisioning.voip_peer_hosts

db_scripts/diff/9868.up

@@ -4,7 +4,7 @@ ALTER TABLE dispatcher ADD column `attrs` varchar(128) NOT NULL DEFAULT '' AFTER
 ALTER TABLE lcr_gw CHANGE column `gw_name` `gw_name` varchar(128) DEFAULT NULL;
 
 #moved to lcr_rule table
-ALTER TABLE lcr_gw DROP column `group_id`;
+#ALTER TABLE lcr_gw DROP column `group_id`;
 
 ALTER TABLE lcr_rule DROP KEY lcr_id_idx;
 ALTER TABLE lcr_rule ADD UNIQUE KEY `lcr_id_prefix_from_uri_idx` (`lcr_id`,`prefix`,`from_uri`);