Revert "derp"

This reverts commit cc91c12408488cf66dc8e49a0a9912118a879a1b.
Revert "enable f2fs"

This reverts commit 556184f492a3ed9b578005fa157cd26d64ba24a8.
Revert "fs: backport f2fs to 3.0"

This reverts commit afdb3b30964d597a06cd17d4b497c2e828a6a224.