Stop handler flush

With https://review.opendev.org/c/openstack/ansible-role-chrony/+/647947
this is no longer necessary as we are not using handlers. Additionally
using handlers is no longer recommended with tripleo_free.

Change-Id: I8d52b0bbacc9af4a101793323e02191b18243cba
(cherry picked from commit 742dc89)

deployment/timesync/chrony-baremetal-ansible.yaml

@@ -119,8 +119,6 @@ outputs:
         - name: Install, Configure and Run Chrony
           include_role:
             name: chrony
-        - name: Ensure chrony has been restarted
-          meta: flush_handlers
         - name: Ensure system is NTP time synced
           command: chronyc makestep
       ansible_group_vars: