The DST code has not yet been fully tested, the upcoming movement
refactor is upon us and it will integrate with the micro timezone
library anyway. Revert it so that next can be merged into main.
This reverts commit 5a8a49a8c77d6d5ba0f46f0e5b51dec2daba46db, reversing
changes made to bfadb81e82dfe47c4445ce7978d9dbc3b4706808.