* GH-2297: Concurrency in Reactor Kafka Binder Resolves https://github.com/spring-cloud/spring-cloud-stream/issues/2297 * Remove unnecessary local var. * Remove subscription cancellation; already handled by the super class.
* GH-2297: Concurrency in Reactor Kafka Binder Resolves https://github.com/spring-cloud/spring-cloud-stream/issues/2297 * Remove unnecessary local var. * Remove subscription cancellation; already handled by the super class.