Revert of V8: increase number of shards for arm64 gc stress.

Revert of V8: increase number of shards for arm64 gc stress. (patchset #1 id:1 of https://codereview.chromium.org/2248363003/ )

Reason for revert:
The root cause of the slow tests has been fixed. A shard increase is not needed.

Original issue's description:
> V8: increase number of shards for arm64 gc stress.
> 
> Reason: shard#0 is timing out on swarming.
> Expected follow up: if this helps, shard in other 
> builders as well.
> 
> R=hablich@chromium.org
> CC=machenbach@chromium.org
> BUG=638295
> 
> Committed: https://chromium.googlesource.com/chromium/tools/build/+/a415f195afcd9db6c89a5da50df939e76d69b849

TBR=hablich@chromium.org,tandrii@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=638295
Committed: https://chromium.googlesource.com/chromium/tools/build/+/860d8d2ab8b6ad3a5ca09d23356252b4944624cc

[Michael Achenbach, 2016-08-30 06:57:26]

The CQ bit was checked by machenbach@chromium.org

[Michael Achenbach, 2016-08-30 06:57:26]

Created Revert of V8: increase number of shards for arm64 gc stress.

[commit-bot: I haz the power, 2016-08-30 06:57:38]

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, 2016-08-30 07:01:13]

Description was changed from

==========
Revert of V8: increase number of shards for arm64 gc stress. (patchset #1 id:1
of https://codereview.chromium.org/2248363003/ )

Reason for revert:
The root cause of the slow tests has been fixed. A shard increase is not needed.

Original issue's description:
> V8: increase number of shards for arm64 gc stress.
> 
> Reason: shard#0 is timing out on swarming.
> Expected follow up: if this helps, shard in other 
> builders as well.
> 
> R=hablich@chromium.org
> CC=machenbach@chromium.org
> BUG=638295
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/a415f195afcd9db6c89a...

TBR=hablich@chromium.org,tandrii@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=638295
==========

to

==========
Revert of V8: increase number of shards for arm64 gc stress. (patchset #1 id:1
of https://codereview.chromium.org/2248363003/ )

Reason for revert:
The root cause of the slow tests has been fixed. A shard increase is not needed.

Original issue's description:
> V8: increase number of shards for arm64 gc stress.
> 
> Reason: shard#0 is timing out on swarming.
> Expected follow up: if this helps, shard in other 
> builders as well.
> 
> R=hablich@chromium.org
> CC=machenbach@chromium.org
> BUG=638295
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/a415f195afcd9db6c89a...

TBR=hablich@chromium.org,tandrii@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=638295

Committed:
https://chromium.googlesource.com/chromium/tools/build/+/860d8d2ab8b6ad3a5ca0...
==========

[commit-bot: I haz the power, 2016-08-30 07:01:13]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/tools/build/+/860d8d2ab8b6ad3a5ca0...

[tandrii(chromium), 2016-08-30 09:18:05]

lgtm