mac: Remove vestiges of 32-bit deprecation

mac: Remove vestiges of 32-bit deprecation

32-bit support was dropped in Chrome 39, a year ago. It seems like a
good time to stop carrying this stuff around.

Committed: https://crrev.com/c5af6de2b6499645244d173f841b4013f3c60a56
Cr-Commit-Position: refs/heads/master@{#360153}

[Mark Mentovai, 2015-11-12 23:10:48]

mark@chromium.org changed reviewers:
+ kerrnel@chromium.org

[Mark Mentovai, 2015-11-12 23:10:48]

Greg, the only other OWNER in these directories is thomasvl, but he hasn’t been
on the team for many years. Since you may wind up getting involved in installer
stuff and this change is mostly in the .keystone_install script, I thought this
might be a good time to introduce you to it.

[Greg K, 2015-11-13 23:33:31]

On 2015/11/12 23:10:48, Mark Mentovai wrote:
> Greg, the only other OWNER in these directories is thomasvl, but he hasn’t
been
> on the team for many years. Since you may wind up getting involved in
installer
> stuff and this change is mostly in the .keystone_install script, I thought
this
> might be a good time to introduce you to it.

LGTM

[Mark Mentovai, 2015-11-17 20:09:41]

The CQ bit was checked by mark@chromium.org

[commit-bot: I haz the power, 2015-11-17 20:10:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1438313003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1438313003/20001

[commit-bot: I haz the power, 2015-11-17 20:39:16]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-17 20:40:05]

Patchset 2 (id:??) landed as
https://crrev.com/c5af6de2b6499645244d173f841b4013f3c60a56
Cr-Commit-Position: refs/heads/master@{#360153}