Delete MacPorts Portfile

[ryandesign]

A MacPorts Portfile was added in 71a4a50. It should be deleted. Portfiles are maintained in the macports-ports repository. Keeping an outdated copy of it in your repository offers no benefit and only creates confusion.

[hoytech]

This repo is unmaintained. Thanks for letting us know. I have removed it my fork: hoytech@6f497d1