Revert of Build delegation for perf tryjobs - fix false account name  (patchset #2 id:10001 of https://codereview.chromium.org/2103133005/ )

Reason for revert:
Broken tryjobs.

Original issue's description:
> This CL attempts to implement build delegation for perf tryjobs.
> Currently, perf try jobs build on the same builder that runs the test.
> This is bad because often we want much slower performance characteristics on
> our perfbots than on our builders, and this makes the builds very slow or even impossible.
>
> BUG= http://crbug.com/601699
>
> Committed: https://chromium.googlesource.com/chromium/tools/build/+/b89e76b0fd8bebe0ccd45aabf54dca49b3cf26b9
> Committed: https://chromium.googlesource.com/chromium/tools/build/+/f7f2bbca20726ccb4dbeed103e8d3b32c90b6d46

TBR=robertocn@chromium.org,sergeyberezin@chromium.org,dnj@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= http://crbug.com/601699

Review-Url: https://codereview.chromium.org/2113553002
60 files changed