Don't add /usr/include32 to include path

Don't add /usr/include32 to include path

This was added a long time ago apparently to support
Ubuntu Lucid: http://codereview.chromium.org/2865032
These days this directory doesn't even exist on ubuntu
or debian.

A recent change to add a check for use_sysroot broke for
target_arch=ia32: https://codereview.chromium.org/1132853010/
Rather than try to fix it this change removes the entire
block.

BUG=489783
Committed: https://crrev.com/eab7867edb4d5a045ddcd24efb313b5a3f47bc83
Cr-Commit-Position: refs/heads/master@{#333196}

[Sam Clegg, 2015-05-19 23:03:25]

sbc@chromium.org changed reviewers:
+ jochen@chromium.org, vapier@chromium.org

[vapier, 2015-05-20 03:36:23]

vapier@chromium.org changed reviewers:
+ phajdan.jr@chromium.org

[vapier, 2015-05-20 03:36:24]

i'd be more than happy with this change if bots continue to work.  the comment
suggested that they really really wanted this path.

when i look at the history though, this path was added along with a bunch of
hacks to build/install-build-deps.sh.  but the latter file had all the
lib32/include32 stuff removed from it here:
https://codereview.chromium.org/472863002

which means this path no longer works and we can purge it.

lgtm

[Sam Clegg, 2015-05-20 16:47:02]

The CQ bit was checked by sbc@chromium.org

[commit-bot: I haz the power, 2015-05-20 16:47:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142793003/20001

[commit-bot: I haz the power, 2015-05-20 16:54:19]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-05-20 16:54:20]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[Sam Clegg, 2015-05-22 01:38:03]

pinging jochen@ for build/OWNERS

[vapier, 2015-05-27 04:43:08]

ping ... this is the last package we need to fix in CrOS before enabling some QA
checks for the whole distro

[Sam Clegg, 2015-05-29 18:27:52]

On 2015/05/27 04:43:08, vapier wrote:
> ping ... this is the last package we need to fix in CrOS before enabling some
QA
> checks for the whole distro

pawel, or jochen?  Can you take a look at this for build/OWNERS?

[Paweł Hajdan Jr., 2015-06-01 10:45:27]

LGTM - but I'm not an owner in src/build

[Sam Clegg, 2015-06-03 20:17:05]

ping jochen@...

[jochen (gone - plz use gerrit), 2015-06-05 12:09:57]

lgtm

[Sam Clegg, 2015-06-05 17:33:13]

The CQ bit was checked by sbc@chromium.org

[commit-bot: I haz the power, 2015-06-05 17:33:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142793003/20001

[commit-bot: I haz the power, 2015-06-05 17:49:42]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-05 17:49:43]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)

[vapier, 2015-06-06 00:44:02]

The CQ bit was checked by vapier@chromium.org

[commit-bot: I haz the power, 2015-06-06 00:45:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142793003/20001

[commit-bot: I haz the power, 2015-06-06 01:18:46]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-06 01:19:34]

Patchset 2 (id:??) landed as
https://crrev.com/eab7867edb4d5a045ddcd24efb313b5a3f47bc83
Cr-Commit-Position: refs/heads/master@{#333196}