Fix auditd container monit startup issue (sonic-net#22012)

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#### Why I did it
new added auditd container failed to be launched due to monit blocker.

##### Work item tracking
- Microsoft ADO **(number only)**:31121982

#### How I did it
Skip the unexpected container check logic

#### How to verify it
Verify via auditd image

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- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211
- [ ] 202305

#### Tested branch (Please provide the tested image version)

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- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

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Author: mssonicbld

files/image_config/monit/container_checker

@@ -216,11 +216,6 @@ def main():
         print("Expected containers not running: " + ", ".join(not_running_containers))
         sys.exit(3)
 
-    unexpected_running_containers = current_running_containers.difference(expected_running_containers)
-    if unexpected_running_containers:
-        print("Unexpected running containers: " + ", ".join(unexpected_running_containers))
-        sys.exit(4)
-
 
 if __name__ == "__main__":
     main()