`calico-work`: remove `systemd` override logic
`calico-work`: remove `systemd` override logic

At one point in time, we needed to add some `systemd`
override logic, but that's been removed for at least a
couple releases now.

Signed-off-by: Tyler Stachecki <ac19b26ca570cbd1d833044669caf79cb1d18c48@bloomberg.net>

bloomberg/chef-bcpc,bloomberg/chef-bcpc,bloomberg/chef-bcpc,bloomberg/chef-bcpc