We pushed the footer in Sprint 83.
Now it's sprint 91, we are long overdue removing the code needed to support the old footer so let's remove that code.
- All traces of MinervaUseFooterV2 removed from repository
- Remove i18n, resources from old footer
- Footer works in desktop and mobile versions of Minerva
- Merge skins.minerva.footerV2.styles module into skins.minerva.base.styles - https://gerrit.wikimedia.org/r/#/c/335699/
- Remove usages of MinervaUseFooterV2 from mediawiki-config. This can be done now as the default value in MobileFrontend master is true. Although for completeness probably best to do after it is removed from MobileFrontend - https://gerrit.wikimedia.org/r/336664 wgMinervaUseFooterV2