chef_client_cron: Don't cleanup legacy cron entries
chef_client_cron: Don't cleanup legacy cron entries

We manage cron_d and not crontab so let's just leave these alone. It might make sense in the future, but for now let's just assume clean installs or legacy installs are cleaned up on their own.

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef-cookbooks/chef-client,chef-cookbooks/chef-client,mattray/chef-client,chef-cookbooks/chef-client,opscode-cookbooks/chef-client,mattray/chef-client,opscode-cookbooks/chef-client,opscode-cookbooks/chef-client,mattray/chef-client