Removed the second and illegal attempt to create the contraint named

NN_SvcClass_GcPolicy.

castor/db/oracleCommon.schema.sql

@@ -885,7 +885,6 @@ CREATE OR REPLACE TYPE strListTable AS TABLE OF VARCHAR2(2048);
 /
 
 /* SvcClass constraints */
-ALTER TABLE SvcClass MODIFY (gcPolicy CONSTRAINT NN_SvcClass_GcPolicy NOT NULL);
 ALTER TABLE SvcClass MODIFY (gcPolicy DEFAULT 'default');
 ALTER TABLE SvcClass ADD CONSTRAINT FK_SvcClass_GCPolicy
   FOREIGN KEY (gcPolicy) REFERENCES GcPolicy (name);