Deprecated in 1.36 can be removed in 1.38
https://codesearch.wmcloud.org/search/?q=Skin%3A%3A(getAllowedSkins%7CgetSkinNames)&i=nope&files=&excludeFiles=&repos=
https://codesearch.wmcloud.org/search/?q=Skin%3A%3A(makeVariablesScript)&i=nope&files=&excludeFiles=&repos=
TODO
- Remove the code
- Update RELEASE_NOTES