Remove stray reference to SH_EMULATE_BUILT_IN_FUNCTIONS.
Remove stray reference to SH_EMULATE_BUILT_IN_FUNCTIONS.

BUG=chromium:642227

Change-Id: Ie1d74c0abd355a0bddc3c2b700390a3a2a9c4823
Reviewed-on: https://chromium-review.googlesource.com/379875
Reviewed-by: Zhenyao Mo <655bdf1d95ff956cd68886dd9e86ee5e987c9dbb@chromium.org>
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

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