Stop bringing Chef up behind the back of the Crowbar framework.

I am working on having the Chef server and client install and operate
like any other node roles, and I need to stop fooling the framework
into thinking it is operating correctly in order to do so.
Merge pull request #1886 from VictorLowther/pull-req-master-90ca95ce1c071c0e2bbb42c26ed6e3424e541022

https://github.com/crowbar/crowbar/pull/1886

Merged by devtool for VictorLowther