Revert of Convert webkit_unit_tests to run exclusively on Swarming

Revert of Convert webkit_unit_tests to run exclusively on Swarming (patchset #2 id:20001 of https://codereview.chromium.org/1341903002/ )

Reason for revert:
This seems causing isolated test problem:
https://code.google.com/p/chromium/issues/detail?id=531819

Original issue's description:
> Convert webkit_unit_tests to run exclusively on Swarming
>
> 0 configs already ran on Swarming
> 43 used to run locally and were converted:
> - chromium.fyi.json: ClangToTLinux tester
> - chromium.fyi.json: ClangToTLinuxASan tester
> - chromium.fyi.json: ClangToTMac tester
> - chromium.fyi.json: ClangToTMacASan tester
> - chromium.fyi.json: ClangToTWin tester
> - chromium.fyi.json: ClangToTWin(dbg) tester
> - chromium.fyi.json: ClangToTWin(dll) tester
> - chromium.fyi.json: ClangToTWin64 tester
> - chromium.fyi.json: ClangToTWin64(dbg) tester
> - chromium.fyi.json: ClangToTWin64(dll) tester
> - chromium.fyi.json: CrWinClang tester
> - chromium.fyi.json: CrWinClang(dbg) tester
> - chromium.fyi.json: CrWinClang(shared) tester
> - chromium.fyi.json: CrWinClang64 tester
> - chromium.fyi.json: CrWinClang64(dbg) tester
> - chromium.fyi.json: CrWinClang64(dll) tester
> - chromium.fyi.json: CrWinClangLLD tester
> - chromium.webkit.json: WebKit Linux
> - chromium.webkit.json: WebKit Linux (dbg)
> - chromium.webkit.json: WebKit Linux 32
> - chromium.webkit.json: WebKit Linux Leak
> - chromium.webkit.json: WebKit Linux Oilpan
> - chromium.webkit.json: WebKit Linux Oilpan (dbg)
> - chromium.webkit.json: WebKit Linux Oilpan Leak
> - chromium.webkit.json: WebKit Linux Trusty
> - chromium.webkit.json: WebKit Mac Oilpan
> - chromium.webkit.json: WebKit Mac Oilpan (dbg)
> - chromium.webkit.json: WebKit Mac10.10
> - chromium.webkit.json: WebKit Mac10.6
> - chromium.webkit.json: WebKit Mac10.6 (dbg)
> - chromium.webkit.json: WebKit Mac10.7
> - chromium.webkit.json: WebKit Mac10.7 (dbg)
> - chromium.webkit.json: WebKit Mac10.8
> - chromium.webkit.json: WebKit Mac10.9
> - chromium.webkit.json: WebKit Mac10.9 (retina)
> - chromium.webkit.json: WebKit Win Oilpan
> - chromium.webkit.json: WebKit Win Oilpan (dbg)
> - chromium.webkit.json: WebKit Win x64 Builder
> - chromium.webkit.json: WebKit Win x64 Builder (dbg)
> - chromium.webkit.json: WebKit Win10
> - chromium.webkit.json: WebKit Win7
> - chromium.webkit.json: WebKit Win7 (dbg)
> - chromium.webkit.json: WebKit XP
>
> Ran:
>   ./manage.py --convert webkit_unit_tests
>
> R=maruel@chromium.org,dpranke@chromium.org
> BUG=98637, 524758
>
> Committed: https://crrev.com/40eeb7ab654466217dcbd444bd7d853cba8b3348
> Cr-Commit-Position: refs/heads/master@{#348834}

TBR=dpranke@chromium.org,maruel@chromium.org,joelo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=98637, 524758
Committed: https://crrev.com/52fbb354ec21e2ab7952a448f294d10007338e64
Cr-Commit-Position: refs/heads/master@{#348841}

[kochi, 2015-09-15 06:26:18]

Created Revert of Convert webkit_unit_tests to run exclusively on Swarming

[commit-bot: I haz the power, 2015-09-15 06:26:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1345713002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1345713002/1

[commit-bot: I haz the power, 2015-09-15 06:27:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-15 06:27:49]

Patchset 1 (id:??) landed as
https://crrev.com/52fbb354ec21e2ab7952a448f294d10007338e64
Cr-Commit-Position: refs/heads/master@{#348841}

[commit-bot: I haz the power, 2015-09-23 12:42:52]

Patchset 1 (id:??) landed as
https://crrev.com/52fbb354ec21e2ab7952a448f294d10007338e64
Cr-Commit-Position: refs/heads/master@{#348841}