Revert D25199264: Enable callgrind collection for C++ snippets
Test Plan: revert-hammer
Differential Revision:
D25199264 (https://github.com/pytorch/pytorch/commit/ff097299aeb4a7e2902000c70992f0abefb8a74e)
Original commit changeset: 529244054e4c
fbshipit-source-id: 7429d7154f92e097089bf51dc81042b766de9cc3
