fix 4.6to10.0 migration script rollback

catalogue/migrations/liquibase/oracle/4.6to10.0.sql

@@ -147,10 +147,10 @@ ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_DIN_NN CHECK (DISK_INSTANCE_N
 ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_DISN_NN CHECK (DISK_INSTANCE_SPACE_NAME IS NOT NULL);
 ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_DIN_DISN_FK FOREIGN KEY(DISK_INSTANCE_NAME, DISK_INSTANCE_SPACE_NAME) REFERENCES DISK_INSTANCE_SPACE(DISK_INSTANCE_NAME, DISK_INSTANCE_SPACE_NAME);
 --rollback ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_FSQU_NN CHECK (FREE_SPACE_QUERY_URL IS NOT NULL);
---rollback ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_RI_NN CHECK (REFRESH_INTERVAL IS NOT NULL);;
---rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DIN_NN
---rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DISN_NN
---rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DIN_DISN_FK
+--rollback ALTER TABLE DISK_SYSTEM ADD CONSTRAINT DISK_SYSTEM_RI_NN CHECK (REFRESH_INTERVAL IS NOT NULL);
+--rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DIN_NN;
+--rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DISN_NN;
+--rollback ALTER TABLE DISK_SYSTEM DROP CONSTRAINT DISK_SYSTEM_DIN_DISN_FK;
 
 
 --changeset mdavis:4 failOnError:true dbms:oracle