Remove pattern reference in service restart

As part of the Trusty removal, the "pattern:" option for service
restarts can be removed. This prevents the following warning message
from appearing in the Ansible runs:

[WARNING]: Ignoring "pattern" as it is not used in "systemd"

Change-Id: I38e04f48360ef558fa7d99e90fb0e73a9cb887be

handlers/main.yml

@@ -22,7 +22,6 @@
   service:
     name: "{{ item.value.program_name }}"
     state: "restarted"
-    pattern: "{{ item.value.program_name }}"
   with_dict: "{{ swift_services }}"
   when:
     - inventory_hostname in groups[item.value.group]