org.springframework.cloud.client.loadbalancer.DefaultRequest has a unused new action

**Describe the bug**
spring-cloud-commons-3.1.4
org.springframework.cloud.client.loadbalancer.DefaultRequest
public class DefaultRequest<T> implements Request<T> {

	private T context;

	public DefaultRequest() {
		new DefaultRequestContext();
	}
}

**Sample**
it seems unused new DefaultRequestContext(), and i'm not find and possible initial in DefaultRequestContext.
