Remove orphan CSS selectors in phui/phui-action-panel.css
Summary:
* `phui-action-panel-status`
** Added in https://we.phorge.it/rP1d05861fb31597d39d8fadc434e79ffe75d8c468, usage removed in https://we.phorge.it/rPa62337dcd83128aebb0940171524eb375ebac293
Test Plan: Grep the code for each CSS selector (`grep --exclude="*.css" -R 'some-search-string' .`), also do partial searches, get no results.
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Differential Revision: https://we.phorge.it/D26009