Remove tuskar handling

The tuskar client has been retired, we do not need to document it anymore,
so remove all traces of it.

Change-Id: Ia12e1dcf6e147005e04da6ce07aefdbcd69750b6

bin/doc-tools-update-cli-reference

@@ -59,7 +59,7 @@ fi
 # python-openstackclient has plugin interface.
 # It needs to install plugin packages
 # (i.e. python-ironicclient).
-osc_plugins=(barbican congress cue designate heat ironic ironic-inspector- sahara tuskar zaqar)
+osc_plugins=(barbican congress cue designate heat ironic ironic-inspector- sahara zaqar)
 if [[ $project == 'openstack' ]]; then
     # sahara misses oslo.log dependency.
     # This is fixed in git repository and can be removed again after

os_doc_tools/resources/clients.yaml

@@ -77,23 +77,6 @@ trove-manage:
       - db_recreate
       - db_sync
       - db_upgrade
-tuskar:
-    name: Deployment service
-    subcommands:
-      - plan-add-role
-      - plan-create
-      - plan-delete
-      - plan-flavor
-      - plan-list
-      - plan-patch
-      - plan-remove-role
-      - plan-scale
-      - plan-show
-      - plan-show-flavors
-      - plan-show-scale
-      - plan-templates
-      - plan-update
-      - role-list
 zaqar:
     name: Message service
 openstack: