Revert of Add mac_chromium_10.10_rel_ng to CQ

Revert of Add mac_chromium_10.10_rel_ng to CQ (patchset #1 id:1 of https://codereview.chromium.org/1270223002/ )

Reason for revert:
We're hitting pending queues on mac_chromium_10.10_rel_ng, see e.g. http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_10.10_rel_ng/builds/2885 (spent over 1 hour in the pending queue).

Also, http://chrome-monitor.appspot.com/view_graph/tryserver.chromium.mac%20Builder%20mac_chromium_10.10_rel_ng%20Queue/Running .

And screenshot: https://goto.google.com/ctnhe (Googlers only).

Original issue's description:
> Add mac_chromium_10.10_rel_ng to CQ
>
> BUG=498330
> R=tandrii@google.com
>
> Committed: https://chromium.googlesource.com/chromium/src/+/67b3d8a862ba79524b3ef36da0408a5532d663c8

TBR=akuegel@google.com,tandrii@chromium.org,phajdan@google.com,sergiyb@chromium.org,tandrii@google.com,akuegel@chromium.org,smut@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=498330
Committed: https://crrev.com/7093d83d411f01554d2821bc2c6c6f42d744c423
Cr-Commit-Position: refs/heads/master@{#342317}

[Paweł Hajdan Jr., 2015-08-07 07:58:51]

Created Revert of Add mac_chromium_10.10_rel_ng to CQ

[commit-bot: I haz the power, 2015-08-07 07:58:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1278113002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1278113002/1

[commit-bot: I haz the power, 2015-08-07 07:59:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-07 07:59:52]

Patchset 1 (id:??) landed as
https://crrev.com/7093d83d411f01554d2821bc2c6c6f42d744c423
Cr-Commit-Position: refs/heads/master@{#342317}

[Adrian Kuegel, 2015-08-07 08:07:22]

lgtm

[smut, 2015-08-07 18:07:55]

How much capacity do we need to add mac_chromium_10.10_rel_ng to the commit
queue? We have 20 VMs already for this.

[Adrian Kuegel, 2015-08-10 07:53:49]

On 2015/08/07 18:07:55, smut wrote:
> How much capacity do we need to add mac_chromium_10.10_rel_ng to the commit
> queue? We have 20 VMs already for this.

Maybe lets discuss this in crbug.com/498330. I already wrote there what I think
contributed to the long pending queues.

[Paweł Hajdan Jr., 2015-08-10 10:51:24]

On 2015/08/10 at 07:53:49, akuegel wrote:
> On 2015/08/07 18:07:55, smut wrote:
> > How much capacity do we need to add mac_chromium_10.10_rel_ng to the commit
> > queue? We have 20 VMs already for this.
> 
> Maybe lets discuss this in crbug.com/498330. I already wrote there what I
think contributed to the long pending queues.

See https://goto.google.com/uyiut for my reply.