fixup: remove flow export from UMD build
fixup: remove flow export from UMD build

Co-Authored-By: Federico Zivolo <fd40ef7abcea3e4a14657d5a45417f084f2fa9a6@users.noreply.github.com>
floating-ui/floating-ui,FezVrasta/popper.js,floating-ui/floating-ui,FezVrasta/popper.js,FezVrasta/popper.js,FezVrasta/popper.js,floating-ui/floating-ui