##### SUMMARY
docker_swarm contains call to Display.deprecated or AnsibleModule.deprecate and is scheduled for removal

```
test/support/integration/plugins/modules/docker_swarm.py:451:12: ansible-deprecated-version: Deprecated version ('2.12') found in call to Display.deprecated or AnsibleModule.deprecate (0%)
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
test/support/integration/plugins/modules/docker_swarm.py
```

##### ANSIBLE VERSION
```
2.12
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

if self.client.check_if_swarm_node():
            self.results['actions'].append("This node is already part of a swarm.")
            return
        if not self.check_mode:
            try:
                self.client.join_swarm(
                    remote_addrs=self.parameters.remote_addrs, join_token=self.parameters.join_token,
                    listen_addr=self.parameters.listen_addr, advertise_addr=self.parameters.advertise_addr)
            except APIError as exc:
                self.client.fail("Can not join the Swarm Cluster: %s" % to_native(exc))
        self.results['actions'].append("New node is added to swarm cluster")
        self.differences.add('joined', parameter=True, active=False)
        self.results['changed'] = True
    def leave(self):
        if not self.client.check_if_swarm_node():
            self.results['actions'].append("This node is not part of a swarm.")
            return
        if not self.check_mode:
            try:
                self.client.leave_swarm(force=self.force)
            except APIError as exc:
                self.client.fail("This node can not leave the Swarm Cluster: %s" % to_native(exc))
        self.results['actions'].append("Node has left the swarm cluster")
        self.differences.add('joined', parameter='absent', active='present')
        self.results['changed'] = True
    def remove(self):