Revert D26733731: [pytorch][PR] Skip dispatch for `is_floating_point`
Test Plan: revert-hammer
Differential Revision:
D26733731 (https://github.com/pytorch/pytorch/commit/4fb82a8808d60c5e4229ed19b2b4ac881ba15b19)
Original commit changeset: 87398d3b7583
fbshipit-source-id: 9eac2b63c72c7d3da43e6a2fe1610549f5c13b70
