Revert of Linux: Enable multi-threading with the gold linker. (patchset #2 id:20001 of https://codereview.chromium.org/894463003/)

Reason for revert:
Several CrOS folks are reporting linker errors locally, even though the CrOS buildbots are green.

Original issue's description:
> Linux: Enable multi-threading with the gold linker.
>
> BUG=161942
>
> Committed: https://crrev.com/226488abee2adbdb6e54e5bfca1c3b2f52f2da2d
> Cr-Commit-Position: refs/heads/master@{#314991}

TBR=thakis@chromium.org,tzik@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=161942

Review URL: https://codereview.chromium.org/909583002

Cr-Commit-Position: refs/heads/master@{#315113}
2 files changed