Remove when condition in roles/swift/tasks/deploy.yml

Because all task in deploy.yml need run in all swift host,
so we don't need the when condition.

Change-Id: Ibd61ce2615985cbad70c13a37c863fc6e5e858e4

ansible/roles/swift/tasks/deploy.yml

 ---
 - include_tasks: register.yml
-  when: inventory_hostname in groups['swift-account-server'] or
-        inventory_hostname in groups['swift-container-server'] or
-        inventory_hostname in groups['swift-object-server'] or
-        inventory_hostname in groups['swift-proxy-server']
 
 - include_tasks: config.yml
-  when: inventory_hostname in groups['swift-account-server'] or
-        inventory_hostname in groups['swift-container-server'] or
-        inventory_hostname in groups['swift-object-server'] or
-        inventory_hostname in groups['swift-proxy-server']
 
 - include_tasks: start.yml
-  when: inventory_hostname in groups['swift-account-server'] or
-        inventory_hostname in groups['swift-container-server'] or
-        inventory_hostname in groups['swift-object-server'] or
-        inventory_hostname in groups['swift-proxy-server']
 
 - include_tasks: check.yml
-  when: inventory_hostname in groups['swift-account-server'] or
-        inventory_hostname in groups['swift-container-server'] or
-        inventory_hostname in groups['swift-object-server'] or
-        inventory_hostname in groups['swift-proxy-server']