Remove berks as an explicit command [ci skip]
Remove berks as an explicit command [ci skip]

ChefSpec & Kitchen both run berks install themselves

SimpleFinance/chef-zookeeper,evertrue/zookeeper-cookbook,SimpleFinance/chef-zookeeper,SimpleFinance/chef-zookeeper,evertrue/zookeeper-cookbook,criteo-forks/chef-zookeeper,evertrue/zookeeper-cookbook