Update oracle-database-migration-to-base-database-service-an-example-migration.md

Author: antounmoubarak

cloud-architecture/custom-apps-and-consolidation/db-migration/db-migration-examples/files/oracle-database-migration-to-base-database-service-an-example-migration.md

@@ -586,8 +586,6 @@ The automatic backup process used to create level 0 and level 1 backups can run
 
 The retention periods for automatic backups can be one of the following retention periods: 7 days, 15 days, 30 days, 45 days, or 60 days. The system automatically deletes your incremental backups at the end of your chosen retention period.
 
-#### Backup and Recovery
-
 ### Security
 
 Please see generic OCI security guidelines in the [Annex](#security-guidelines).