Bug 1623792 - Pt 10 - Remove an unused field and method. r=nical
Bug 1623792 - Pt 10 - Remove an unused field and method. r=nical

Differential Revision: https://phabricator.services.mozilla.com/D88931

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/3832fac142efd84069cc6ef0a965689171cdea8b

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender