Delete torch::deploy from pytorch core (#85953)
As we have migrated torch::deploy over to https://github.com/pytorch/multipy, we can now delete it from pytorch core as ongoing development will happen there.
This PR was created due to syncing issues with https://github.com/pytorch/pytorch/pull/85443 which is where the review history can be found.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85953
Approved by: https://github.com/seemethere, https://github.com/malfet
