Remove mirror sea.us.{rsync,distfiles,packages}.macports.org after being out-of-date for almost a year

[raimue (Rainer Müller)]

The mirror in Seattle, USA operated by PNNL has not been updated for almost a year. At first no administrative contact was reachable, but later it was confirmed the server in question was decommissioned (although still reachable?).

While missing distfiles or packages will be skipped, using the ports tree from this mirror over rsync is a problem. However, also for distfiles and packages, this mirror will not help users if it is not updated as it leads to unnecessary download delays. We should therefore remove it from our mirror rotation.

• [x] Remove mirror from wiki page
• [x] Remove mirror from ​mirror_sites.tcl
• [x] Remove mirror from ​archive_sites.tcl
• [x] Remove DNS domain names for sea.us.*.macports.org

Original report: ​https://lists.macports.org/pipermail/macports-users/2019-June/046832.html

[raimue (Rainer Müller)]

In 28458fabcf75763d4cb60650e5cc0c0892610e17/macports-ports (master):

mirrors: Remove sea.us.{distfiles,packages}.macports.org

The mirror has been stale for almost a year.

Closes: #58580

[raimue (Rainer Müller)]

I have not yet removed the DNS records in order not to immediately break downloads for those that still have it listed in their ports tree, but will follow through with this later.

[ryandesign (Ryan Carsten Schmidt)]

If anyone is still syncing from that server, it's because they haven't noticed it's not updating. In which case, removing the DNS records would be a good way to get those users to notice.

[raimue (Rainer Müller)]

I removed sea.us.{distfiles,packages,rsync}.macports.org from DNS.