1596579 - Remove `stringbundleset` element

Status: NEW

(Toolkit :: UI Widgets, task)

Description

[Brian Grinstead [:bgrins]]

This doesn't really do anything anymore. There are a couple of instances where we tack strings onto them as attributes but those strings could either be migrated to Fluent or moved onto a child stringbundle.

Related but different thing: we want to get rid of <stringbundle> as part of the Fluent migration (Bug 1581212).

https://searchfox.org/mozilla-central/search?q=stringbundleset&path=

Comment 1

[Brian Grinstead [:bgrins]]

To split this up we could always remove the simple ones (that aren't accessed from JS) in one patch, handle the others in the next, and then remove the xul.css reference in a last one.