[runtime] Remove the unused weird %Likely and %Unlikely intrinsics.

[runtime] Remove the unused weird %Likely and %Unlikely intrinsics.

These intrinsics are completely unused and there doesn't seem to an
actual use case for it in the future.

R=mstarzinger@chromium.org

Committed: https://crrev.com/9c8f4f91aab922b36d0b8c9428f0547cf021b9f3
Cr-Commit-Position: refs/heads/master@{#31828}

[Benedikt Meurer, 2015-11-05 13:25:14]

Hey Michi,

Another red-only CL.
Please take a look.

Thanks,
Benedikt

[Michael Starzinger, 2015-11-05 13:40:27]

LGTM. Red good! Moar red. I like red!

[Michael Starzinger, 2015-11-05 13:40:51]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2015-11-05 13:40:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1418663011/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1418663011/1

[commit-bot: I haz the power, 2015-11-05 13:52:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-05 13:52:39]

Patchset 1 (id:??) landed as
https://crrev.com/9c8f4f91aab922b36d0b8c9428f0547cf021b9f3
Cr-Commit-Position: refs/heads/master@{#31828}