Revert "tools/luci-go: remove old way of mapping isolate"

This reverts commit 6bb055bef632b46bed7ee8e350c5de2278c67145.

Reason for revert: P0 bug https://crbug.com/865882

Original change's description:
> tools/luci-go: remove old way of mapping isolate
> 
> It's now only mapped via CIPD, which is the right solution going forward.
> 
> Bug: 851596,865541
> Change-Id: I25ddd0e059c818fafbc5587b06ff35b6c733a16e
> Reviewed-on: https://chromium-review.googlesource.com/1143448
> Commit-Queue: Marc-Antoine Ruel <maruel@chromium.org>
> Reviewed-by: John Budorick <jbudorick@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#576550}

TBR=maruel@chromium.org,tandrii@chromium.org,jbudorick@chromium.org

Change-Id: I2d432e9c80379c41e22b7a1cfdb4ea3f54586baa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 851596, 865541
Reviewed-on: https://chromium-review.googlesource.com/1145020
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#576823}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 31d0faaac3c79d920233fa8c93e2cf886123c840
4 files changed
tree: 731bb91dcdf6e2d1c6b8c27d7e1ce11e805900cc
  1. .gitignore
  2. OWNERS
  3. README.md
  4. linux64/
  5. mac64/
  6. win64/
README.md

luci-go

Contains executable built out of https://chromium.googlesource.com/infra/luci/luci-go/+/master/client/cmd Mapped through CIPD.