MB-100: cbrecovery tests

- cleanup

Change-Id: Ibf83ae45e19a61529b755cba20b9a014564819f1
Reviewed-on: http://review.couchbase.org/27133
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>