Revert of V8: Use new slave-preference function on tryserver

Revert of V8: Use new slave-preference function on tryserver (patchset #1 id:1 of https://codereview.chromium.org/2448873003/ )

Reason for revert:
Fails on master

Original issue's description:
> V8: Use new slave-preference function on tryserver
> 
> BUG=658189
> 
> Committed: https://chromium.googlesource.com/chromium/tools/build/+/1978a7f881b4583c3f87362961dbe82cc20ccf52

TBR=tandrii@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=658189
Committed: https://chromium.googlesource.com/chromium/tools/build/+/7530f89daaf64818da1c8c6ae924d68b5d759c6b

[Michael Achenbach, 2016-10-25 13:50:19]

The CQ bit was checked by machenbach@chromium.org

[Michael Achenbach, 2016-10-25 13:50:19]

Created Revert of V8: Use new slave-preference function on tryserver

[commit-bot: I haz the power, 2016-10-25 13:50:23]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-25 13:50:34]

Description was changed from

==========
Revert of V8: Use new slave-preference function on tryserver (patchset #1 id:1
of https://codereview.chromium.org/2448873003/ )

Reason for revert:
Fails on master

Original issue's description:
> V8: Use new slave-preference function on tryserver
> 
> BUG=658189
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/1978a7f881b4583c3f87...

TBR=tandrii@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=658189
==========

to

==========
Revert of V8: Use new slave-preference function on tryserver (patchset #1 id:1
of https://codereview.chromium.org/2448873003/ )

Reason for revert:
Fails on master

Original issue's description:
> V8: Use new slave-preference function on tryserver
> 
> BUG=658189
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/1978a7f881b4583c3f87...

TBR=tandrii@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=658189

Committed:
https://chromium.googlesource.com/chromium/tools/build/+/7530f89daaf64818da1c...
==========

[commit-bot: I haz the power, 2016-10-25 13:50:35]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/tools/build/+/7530f89daaf64818da1c...

[tandrii(chromium), 2016-10-25 14:03:24]

lgtm