mon: Disable the msgr v1 port if msgr2 is required

[travisn]

The mon was listening on both v1 and v2 ports inside the daemon even though the service endpoint would not redirect any traffic to the v1 port. When msgr2 is required, disable the mon from listening on the v1 port for reduced security footprint.

Checklist:

• [ ] Commit Message Formatting: Commit titles and messages follow guidelines in the developer guide.
• [ ] Reviewed the developer guide on Submitting a Pull Request
• [ ] Pending release notes updated with breaking and/or notable changes for the next minor release.
• [ ] Documentation has been updated, if necessary.
• [ ] Unit tests have been added, if necessary.
• [ ] Integration tests have been added, if necessary.