Deletes a custom engine version. To run this command, make sure you meet the following prerequisites:
See https://paws-r.github.io/docs/rds/delete_custom_db_engine_version.html for full documentation.
rds_delete_custom_db_engine_version(Engine, EngineVersion)[required] The database engine. The only supported engine is custom-oracle-ee.
[required] The custom engine version (CEV) for your DB instance. This option is
required for RDS Custom, but optional for Amazon RDS. The combination of
Engine and EngineVersion is unique per customer per Amazon Web
Services Region.