Drop db_scripts/diff/8000_adjust_billing_db.up

From: Michael Prokop <mprokop@sipwise.com>

db_scripts/diff/8000_adjust_billing_db.up

@@ -1,14 +0,0 @@
-USE billing;
-
-ALTER TABLE billing_fees_history ADD KEY `zonehid_idx` (`billing_zones_history_id`);
-ALTER TABLE billing_fees_history ADD CONSTRAINT `b_f_h_bzhid_ref` FOREIGN KEY (`billing_zones_history_id`)
-                               REFERENCES `billing_zones_history` (`id`)
-                               ON DELETE RESTRICT ON UPDATE CASCADE;
-
-ALTER TABLE voip_subscribers DROP FOREIGN KEY `v_s_pnumid_ref`;
-ALTER TABLE voip_subscribers ADD CONSTRAINT `v_s_pnumid_ref` FOREIGN KEY (`primary_number_id`) REFERENCES `voip_numbers` (`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
-ALTER TABLE billing_fees AUTO_INCREMENT=1000;
-ALTER TABLE billing_fees_history AUTO_INCREMENT=1000;
-ALTER TABLE billing_zones AUTO_INCREMENT=1000;
-ALTER TABLE billing_zones_history AUTO_INCREMENT=1000;