Revert of Enable GN check for webrtc/{ortc,p2p} (patchset #4 id:60001 of https://codereview.webrtc.org/2714263004/ )

Reason for revert:
Fails compile in Chromium for NaCl:
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Win%20Builder/builds/9320/
 http://build.chromium.org/p/chromium.webrtc.fyi/builders/Mac%20Builder/builds/22215
http://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/14501

Original issue's description:
> Enable GN check for webrtc/{ortc,p2p}
>
> Introduce new target //webrtc/p2p:rtc_p2p_test_utils to host
> test-related utilities.
> Previously uncovered header "base/fakecandidatepair.h" is now also in a target.
>
> BUG=webrtc:6828
>
> Review-Url: https://codereview.webrtc.org/2714263004
> Cr-Commit-Position: refs/heads/master@{#17036}
> Committed: https://chromium.googlesource.com/external/webrtc/+/c9515b6ce642875c4994deb25a5bb0132a958848

TBR=deadbeef@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6828

Review-Url: https://codereview.webrtc.org/2735583002
Cr-Commit-Position: refs/heads/master@{#17038}
3 files changed
tree: a2df0dadca140cd202dd17cbf942696e36ef217c
  1. build_overrides/
  2. data/
  3. infra/
  4. resources/
  5. tools-webrtc/
  6. webrtc/
  7. .clang-format
  8. .git-blame-ignore-revs
  9. .gitignore
  10. .gn
  11. AUTHORS
  12. BUILD.gn
  13. check_root_dir.py
  14. cleanup_links.py
  15. codereview.settings
  16. DEPS
  17. LICENSE
  18. license_template.txt
  19. LICENSE_THIRD_PARTY
  20. OWNERS
  21. PATENTS
  22. PRESUBMIT.py
  23. pylintrc
  24. README.md
  25. 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