Try to better cleanup after tests (delete consumer group info, let console-consumer exit by its own).
Try to better cleanup after tests (delete consumer group info, let console-consumer exit by its own).

Signed-off-by: Marios Andreopoulos <279a4cf6d7f8da1ddc113bb946b9273d9d938683@andmarios.com>

Landoop/fast-data-dev,Landoop/fast-data-dev,Landoop/fast-data-dev