Reland of Delete unused code from systeminfo. (patchset #1 id:1 of https://codereview.webrtc.org/2584563004/ )

Reason for revert:
Relanding as downstream has been fixed.

Original issue's description:
> Revert of Delete unused code from systeminfo. (patchset #3 id:40001 of https://codereview.webrtc.org/2578323005/ )
>
> Reason for revert:
> Breaks downstream build.
>
> Original issue's description:
> > Delete unused code from systeminfo.
> >
> > BUG=webrtc:6906
> >
> > Review-Url: https://codereview.webrtc.org/2578323005
> > Cr-Commit-Position: refs/heads/master@{#15655}
> > Committed: https://chromium.googlesource.com/external/webrtc/+/617ca316e9363986a54926a185fac799de3869c2
>
> TBR=perkj@webrtc.org,kthelgason@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> BUG=webrtc:6906
>
> Review-Url: https://codereview.webrtc.org/2584563004 .
> Cr-Commit-Position: refs/heads/master@{#15660}
> Committed: https://chromium.googlesource.com/external/webrtc/+/ffb865f3e05fcba0c24baab27201ce2414b5430c

TBR=perkj@webrtc.org,skvlad@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:6906

Review-Url: https://codereview.webrtc.org/2614693002
Cr-Commit-Position: refs/heads/master@{#15956}
6 files changed
tree: 9899015d0842ab493800a4c8ea7307c574afdd7a
  1. build_overrides/
  2. data/
  3. infra/
  4. ios/
  5. resources/
  6. tools-webrtc/
  7. webrtc/
  8. .clang-format
  9. .git-blame-ignore-revs
  10. .gitignore
  11. .gn
  12. AUTHORS
  13. BUILD.gn
  14. check_root_dir.py
  15. cleanup_links.py
  16. codereview.settings
  17. DEPS
  18. LICENSE
  19. license_template.txt
  20. LICENSE_THIRD_PARTY
  21. OWNERS
  22. PATENTS
  23. PRESUBMIT.py
  24. pylintrc
  25. README.md
  26. WATCHLISTS
README.md

WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.

Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.

The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others. This page is maintained by the Google Chrome team.

Development

See http://www.webrtc.org/native-code/development for instructions on how to get started developing with the native code.

More info