Summary: Looks like the border was almost always overridden and the background was only slightly darker. Safe to remove these. Fixes T10424
Test Plan: Set Workboard to "red" see red workboard. Toggle CSS on and off on homepage, note little to no visual difference.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T10424
Differential Revision: https://secure.phabricator.com/D15331
800d800766