Modernize Phortune PHID constants

Summary:
Ref T2787. These were still stuck in the stone ages.

(The handles are pretty skeletal but most aren't used anywehre.)

Test Plan: Funded an initiative without anything breaking. Grepped for removed constants.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T2787

Differential Revision: https://secure.phabricator.com/D10647