purge asm-generic/bitops/non-atomic.h usage

Nothing uses the helpers in this file, so drop it.

BUG=chromium:878440
TEST=build works

Change-Id: Iee485ba78b3cbc86fbeb2acd19c28315db327f1b
Reviewed-on: https://chromium-review.googlesource.com/1201047
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
2 files changed