Revert "fixing cert dl via https://github.com/opscode-cookbooks/chef-client/pull/187/files"

This reverts commit 402c83c7cfbb533c9398badb7a559261faace8d3.
Revert "hack to get around https://github.com/opscode-cookbooks/chef-client/issues/196"

This reverts commit 2014667ef8501a7ea938834db8c3aef7918f6007.