Revert D25554109: [StaticRuntime][ATen] Add out variant for narrow_copy
Test Plan: revert-hammer
Differential Revision:
D25554109 (https://github.com/pytorch/pytorch/commit/ed04b71651f29cd7727e36b51a2d723bc68b6a3e)
Original commit changeset: 6bae62e6ce34
fbshipit-source-id: bfa038e150166d0116bcae8f7a6415d98d4146de
