@Override
    public DeleteOptionGroupResult deleteOptionGroup(DeleteOptionGroupRequest request) {
        request = beforeClientExecution(request);
        return executeDeleteOptionGroup(request);
    }
<p>
Deletes an existing option group.
</p>

@param deleteOptionGroupRequest
@return Result of the DeleteOptionGroup operation returned by the service.
@throws OptionGroupNotFoundException
        The specified option group could not be found.
@throws InvalidOptionGroupStateException
        The option group isn't in the <i>available</i> state.
@sample AmazonRDS.DeleteOptionGroup
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DeleteOptionGroup" target="_top">AWS API
     Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java