MB-100: Getting rid of unecessary statements

- non-sudo non-root setup automation

Change-Id: I97dd96105df1dcd4eecb5cd6e7c04e8c3af50cc5
Reviewed-on: http://review.couchbase.org/28377
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>