Drop omp simd from batch_permutation_op.cc (#70579)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70579
Fixes
```
36 stderr: caffe2/caffe2/operators/batch_permutation_op.cc:25:1: error: loop not vectorized: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering [-Werror,-Wpass-failed=transform-warning]
3 caffe2/caffe2/operators/batch_permutation_op.cc:25:1: error: loop not vectorized: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering [-Werror,-Wpass-failed=transform-warning]
```
Test Plan: Sandcastle
Reviewed By: meyering
Differential Revision: D33378925
fbshipit-source-id: 5ae3bfb8fadfa91a13ff0dcf5fae2ce7864ea90e
