Revert "Python Dispatcher integration with C++ dispatcher (#84826)"
This reverts commit 35f6a69191ef762cf22b6cbfe94b8d9406e16674.
Reverted https://github.com/pytorch/pytorch/pull/84826 on behalf of https://github.com/malfet due to Broke dynamo, see https://hud.pytorch.org/pytorch/pytorch/commit/35f6a69191ef762cf22b6cbfe94b8d9406e16674
