R1:9b92e56dfc03

Don't link "Dxxx" on Differential revision pages

Summary: Ref T12027. See T12043 for discussion.

Test Plan: Double-clicked "Dxxx" to select it.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12027

Differential Revision: https://secure.phabricator.com/D17283