Remove wrong FK on salesrule_label table

Author: Dnd-Mafer

scripts/salesrule.sql

@@ -106,7 +106,6 @@ ALTER TABLE `salesrule_customer`
     DROP FOREIGN KEY `SALESRULE_CUSTOMER_RULE_ID_SEQUENCE_SALESRULE_SEQUENCE_VALUE`,
     ADD CONSTRAINT `SALESRULE_CUSTOMER_RULE_ID_SALESRULE_RULE_ID` FOREIGN KEY (`rule_id`) REFERENCES `salesrule` (`rule_id`);
 ALTER TABLE `salesrule_label`
-    DROP FOREIGN KEY `SALESRULE_LABEL_RULE_ID_SEQUENCE_SALESRULE_SEQUENCE_VALUE`,
     ADD CONSTRAINT `SALESRULE_LABEL_RULE_ID_SALESRULE_RULE_ID` FOREIGN KEY (`rule_id`) REFERENCES `salesrule` (`rule_id`);
 
 DROP TABLE `sequence_salesrule`;