R1:cbcab60fbb95

Remove obsolete instructions from information on prototype applications

Summary: Most of this document is no longer relevant, since we're happy to work on prototypes if you're paying us and no longer have any meaningful free support.

Test Plan: Read document.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18719