casa-mp-base

magic-exttools: replaced_by magic

This port was created ten years ago because apparently the ext2sim and
ext2spice programs provided by the magic port didn't work:

See: https://trac.macports.org/ticket/15173

That ticket didn't explain in what way they didn't work, but perhaps it
was as described in another ticket filed six years ago. If so, I am
unable to reproduce that problem today, so this plus the current
inability to build magic-exttools at all and it being years out of date
supports replacing it with magic.

Closes: https://trac.macports.org/ticket/36249

magic-exttools did also install sim2spi, which magic does not install,
however it can't ever have worked since it references /usr/bin/nawk
which does not exist.