Simplify Storage meta conversion with PyObject preservation (#122018)
Thanks to https://github.com/pytorch/pytorch/pull/109039 we can rely on
finalizers on Storage PyObject to handle removal from dict.
Irritatingly, we still have to attach finalizer, because we don't have
a weak key AND value dict (only one or the other).
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/122018
Approved by: https://github.com/eellison, https://github.com/kurtamohler
