R1:4d3f0dc7c727

Remove product literal strings in "pht()", part 8

Summary: Ref T13658.

Test Plan:
This test plan is non-exhaustive.

- Viewed "remarkup.process" Conduit method API page.
- Viewed URIs in a Diffusion repository.
- Viewed editor protocol configuration in Settings.

Maniphest Tasks: T13658

Differential Revision: https://secure.phabricator.com/D21772