Remove notice about MacPorts maintainer. Don't have much time and won't continue as Mac user anyway...

input/stuff.md

         print "  * **[%s](%s)**" % (p.title, p.url) # markdown list item
 %-->
 
-### MacPorts Maintainer
-
-* **[cppcheck](https://trac.macports.org/browser/trunk/dports/devel/cppcheck/Portfile)** static code analysis
-* **[mp3cat](https://trac.macports.org/browser/trunk/dports/audio/mp3cat/Portfile)** read and write mp3 files
-
 ### 3D Print Designs ([Repository](http://xythobuz.de/git/3d-print-designs/))
 
 * [Fabrikator Mini Filament Spool Holder](http://www.thingiverse.com/thing:1427890)