Simpify the provides in the systemd service
Simpify the provides in the systemd service

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

chef-brigade/etcd-cookbook,chef-cookbooks/etcd,chef-brigade/etcd-cookbook,spheromak/etcd-cookbook,someara/etcd-cookbook,spheromak/etcd-cookbook,someara/etcd-cookbook,someara/etcd-cookbook,spheromak/etcd-cookbook,chef-cookbooks/etcd,chef-brigade/etcd-cookbook,chef-cookbooks/etcd