Summary: This removes all calls to addSpacer and the method. We were applying it inconsistently and it was causing spacing issues with redesigning the sidenav. My feeling is we can recreate the space in CSS if the design dictates, which would apply it consistently.
Test Plan: Go to Applications, click on every application.
Reviewers: epriestley, btrahan
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D4420
38626dce64