COOPR-621 Do not require Internet for chef-solo bootstrap

Here's the flow:

yum -> apt -> curl -> wget -> FAIL

This should allow organizations to provide the `chef` package via their own YUM/APT repositories, which may reside inside their firewall.
this line could be the only indication that coopr is doing anything in the case of ssh failure (depending on provider).  that was the original reason for it.  I think it could still be a useful debug message.