Do not restart try to restart the timer when switching to service mode
Do not restart try to restart the timer when switching to service mode

When switching the systemd service from timer to service, the timer is
removed. There is no way to restart it.

Signed-off-by: Baptiste Courtois <663c5b578ba583cd836dff033cf411b4ec7d0447@criteo.com>

scalp42/chef-client,scalp42/chef-client,chef-cookbooks/chef-client,opscode-cookbooks/chef-client,mattray/chef-client,mattray/chef-client,opscode-cookbooks/chef-client,chef-cookbooks/chef-client,chef-cookbooks/chef-client,mattray/chef-client,scalp42/chef-client,opscode-cookbooks/chef-client