remove dry run flag that does nothing

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
update changelog

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
remove useless if dry run conditions

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #162 from alfredodeza/7276

remove dry run flag