Reason for revert:
Breaks buildbot
Original issue's description:
> Remove some warning suppressions from SocketRocket.
>
> These warnings started appearing on a clang update. This CL patches the
> vendored library and removes the supression. We assert on the return as
> we're not equipped to deal with failures there anyway.
>
> BUG=webrtc:6396
> NOTRY=true
>
> Review-Url: https://codereview.webrtc.org/2704383004
> Cr-Commit-Position: refs/heads/master@{#16820}
> Committed: 49990e88fbTBR=kjellander@webrtc.org,magjed@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6396
Review-Url: https://codereview.webrtc.org/2714123002
Cr-Commit-Position: refs/heads/master@{#16822}
e47de1a69c