Reverting as Github actions don't run this test as a swarm node:

docker.errors.APIError: 503 Server Error for http+docker://localhost/v1.43/services/create: Service Unavailable ("This node is not a swarm manager. Use "docker swarm init" or "docker swarm join" to connect this node to swarm and try again.")

Revert "Final commit of this PR marking the test case that validates logging in the Docker Swarm Operator. We log two times a different message and we assert that the two lines are given back in the logs in the expected sequence."

This reverts commit 048ba1e.

tests/providers/docker/operators/test_docker_swarm.py

@@ -17,7 +17,7 @@
 # under the License.
 from __future__ import annotations
 
-from unittest import TestCase, mock
+from unittest import mock
 
 import pytest
 from docker import APIClient, types
@@ -209,33 +209,3 @@ def test_on_kill_client_not_created(self, docker_api_client_patcher):
         op.on_kill()
         docker_api_client_patcher.return_value.remove_service.assert_not_called()
         mock_service.assert_not_called()
-
-    def test_logging(self):
-        """
-        Test logging of operator.
-        """
-        operator = DockerSwarmOperator(
-            command="""
-            /bin/bash  -c '
-                            echo "Test message 1";
-                            echo "Test message 2";
-                        '
-            """,
-            environment={"UNIT": "TEST"},
-            image="ubuntu:latest",
-            task_id="unit_test_logging",
-            enable_logging=True,
-            tty=False,
-            docker_url="unix://var/run/docker.sock",
-            mode=types.ServiceMode(mode="replicated-job"),
-        )
-
-        this_test = TestCase()
-        with this_test.assertLogs("airflow.task.operators", level="INFO") as logs:
-            operator.execute(None)
-
-        logs = "\n".join(logs.output)
-        this_test.assertRegex(
-            logs,
-            r"INFO:airflow\.task\.operators\.airflow\.providers\.docker\.operators\.docker_swarm.DockerSwarmOperator:Test message 1\nINFO:airflow\.task\.operators\.airflow\.providers\.docker\.operators\.docker_swarm.DockerSwarmOperator:Test message 2\n",
-        )