R1:c9b0d107f079

Remove unused "icon" parameter from policy name rendering

Summary: Ref T13411. This pathway has an unused "icon" parameter with no callsites. Throw it away to ease refactoring.

Test Plan: Grepped for callsites, found none using this parameter.

Maniphest Tasks: T13411

Differential Revision: https://secure.phabricator.com/D20803