Revert "[Windows] Update toolchain to MSVC 2017"

This reverts commit 42d93ff0836c135235506d522d35f9c61282f676.

Reason for revert: The windows bots don't have the correct authorization file to download our internal copy of MSVC 2017.

Original change's description:
> [Windows] Update toolchain to MSVC 2017
> 
> This is mainly to support upcomping changes in BoringSSL, and to keep
> our version of MSVC up-to-date with Chromium.
> 
> Change-Id: Id6148b74a7e986147faf721b2923599f148b8b3a
> Reviewed-on: https://dart-review.googlesource.com/8168
> Reviewed-by: William Hesse <whesse@google.com>

TBR=whesse@google.com,vegorov@google.com,zra@google.com,asiva@google.com

Change-Id: I89dd1c8250d997a01bbc8de1a13cd86d5342c316
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/8660
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: William Hesse <whesse@google.com>
3 files changed
tree: baa98b48ed0fb785a373b40cc2bb64f76e355ad3
  1. build/
  2. client/
  3. docs/
  4. pkg/
  5. runtime/
  6. samples/
  7. samples-dev/
  8. sdk/
  9. tests/
  10. third_party/
  11. tools/
  12. utils/
  13. .clang-format
  14. .gitattributes
  15. .gitignore
  16. .gn
  17. .mailmap
  18. .packages
  19. .travis.yml
  20. AUTHORS
  21. BUILD.gn
  22. CHANGELOG.md
  23. codereview.settings
  24. DEPS
  25. LICENSE
  26. PATENTS
  27. PRESUBMIT.py
  28. README.dart-sdk
  29. README.md
  30. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

License & patents

See LICENSE and PATENTS.