This repo is no longer using USE-JWT-COOKIE header, since it has the required edx-drf-extensions>10.2.0, where it was fully removed. This removes all uses of the header, except updating CORS_ALLOW_HEADERS, which can't be done before all MFEs and other callers stop sending the header. See "[DEPR]: USE-JWT-COOKIE header" for more details: - https://github.com/openedx/edx-drf-extensions/issues/371