Revert of Enabling 'gn check' on //webrtc/test. (patchset #3 id:90001 of https://codereview.webrtc.org/2815103005/ )

Reason for revert:
Breaks Chromium because in Chromium we import WebRTC with rtc_include_tests=false (https://bugs.chromium.org/p/chromium/issues/detail?id=713179#c6).

Chromium uses webrtc/test/fuzzers and this CL adds test dependencies to neteq_rtc_fuzzer.

Original issue's description:
> Reland of Enabling 'gn check' on //webrtc/test. (patchset #1 id:1 of https://codereview.webrtc.org/2817003002/ )
>
> Reason for revert:
> The original CL was breaking a downstream buildbot: https://build.chromium.org/p/client.webrtc/builders/Linux64%20Release%20%28Libfuzzer%29/builds/5429
>
> This CL fixes some dependencies in: webrtc/test/fuzzers/BUILD.gn
> (PS #2 and PS #3).
>
> BUG=webrtc:6828
>
> Original issue's description:
> > Revert of Enabling 'gn check' on //webrtc/test. (patchset #10 id:180001 of https://codereview.webrtc.org/2796363003/ )
> >
> > Reason for revert:
> > It is breaking a downstream bot.
> >
> > Original issue's description:
> > > Enabling 'gn check' on //webrtc/test.
> > >
> > > BUG=webrtc:6828
> > > NOTRY=True
> > >
> > > Review-Url: https://codereview.webrtc.org/2796363003
> > > Cr-Commit-Position: refs/heads/master@{#17689}
> > > Committed: https://chromium.googlesource.com/external/webrtc/+/b41445858e23fb757e5e10ac5631aa80e9e5eea9
> >
> > TBR=kjellander@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/2817003002
> > Cr-Commit-Position: refs/heads/master@{#17690}
> > Committed: https://chromium.googlesource.com/external/webrtc/+/8a24f47bad6eebb0fba10c3bbdb9556e43e19379
>
> Review-Url: https://codereview.webrtc.org/2815103005
> Cr-Commit-Position: refs/heads/master@{#17758}
> Committed: https://chromium.googlesource.com/external/webrtc/+/6f27633f47d0192f7cb04852be0988013e6c19dd

TBR=kjellander@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:6828
NOTRY=True

Review-Url: https://codereview.webrtc.org/2842533002
Cr-Original-Commit-Position: refs/heads/master@{#17851}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: b80ef8c46ee12cf95cd6ca16af9d268a7b5fad8e
2 files changed