Deletes a custom model that you imported earlier. For more information, see <a href="https://docs.aws.amazon.com/bedrock/latest/userguide/model-customization-import-model.html">Import a customized model</a> in the <a href="https://docs.aws.amazon.com/bedrock/latest/userguide/what-is-service.html">Amazon Bedrock User Guide</a>.