Use DeleteDomain com um AWS SDK ou CLI

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.opensearch.OpenSearchClient;
import software.amazon.awssdk.services.opensearch.model.OpenSearchException;
import software.amazon.awssdk.services.opensearch.model.DeleteDomainRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DeleteDomain {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    <domainName>

                Where:
                    domainName - The name of the domain to delete.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String domainName = args[0];
        Region region = Region.US_EAST_1;
        OpenSearchClient searchClient = OpenSearchClient.builder()
                .region(region)
                .build();

        deleteSpecificDomain(searchClient, domainName);
        System.out.println("Done");
    }

    public static void deleteSpecificDomain(OpenSearchClient searchClient, String domainName) {
        try {
            DeleteDomainRequest domainRequest = DeleteDomainRequest.builder()
                    .domainName(domainName)
                    .build();

            searchClient.deleteDomain(domainRequest);
            System.out.println(domainName + " was successfully deleted.");

        } catch (OpenSearchException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

suspend fun deleteSpecificDomain(domainNameVal: String) {
    val request =
        DeleteDomainRequest {
            domainName = domainNameVal
        }
    OpenSearchClient { region = "us-east-1" }.use { searchClient ->
        searchClient.deleteDomain(request)
        println("$domainNameVal was successfully deleted.")
    }
}