gn: Drop NaCl gcc-newlib toolchains

gn: Drop NaCl gcc-newlib toolchains

NaCl's gcc-newlib toolchains are no longer supported and should never
be used in bot builds at this point.  The newlib use cases are now
supported by the nacl-clang toolchain.  The gcc-glibc toolchains
remain as they were.

R=dpranke@chromium.org, dschuff@chromium.org
BUG=

Committed: https://crrev.com/5927063a80783f2873f6be1e5948d9382028fff3
Cr-Commit-Position: refs/heads/master@{#349478}

[Derek Schuff, 2015-09-17 18:18:56]

dschuff@chromium.org changed reviewers:
+ sbc@google.com

[Derek Schuff, 2015-09-17 18:19:11]

dschuff@chromium.org changed reviewers:
+ sbc@chromium.org
- sbc@google.com

[Derek Schuff, 2015-09-17 18:19:33]

On 2015/09/17 18:03:00, Roland McGrath wrote:

+sbc
Will this eventually fall through to the SDK? i.e. are the gyp builds used by
the SDK eventually going to go away?

[Roland McGrath, 2015-09-17 18:23:37]

This is entirely orthogonal to everything except GN builds.

The support for the gcc-newlib toolchains should go away from everywhere and not
be supported by future SDK versions.  But that is not related to this change.

[Derek Schuff, 2015-09-17 19:00:42]

lgtm

[Roland McGrath, 2015-09-17 19:12:55]

The CQ bit was checked by mcgrathr@chromium.org

[commit-bot: I haz the power, 2015-09-17 19:13:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1350093002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1350093002/1

[commit-bot: I haz the power, 2015-09-17 19:23:59]

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

[commit-bot: I haz the power, 2015-09-17 19:24:00]

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...)

[Roland McGrath, 2015-09-17 19:29:38]

Needs OWNERS remove from Dirk...

[Roland McGrath, 2015-09-17 19:29:50]

On 2015/09/17 19:29:38, Roland McGrath wrote:
> Needs OWNERS remove from Dirk...

by which I meant review of course.

[Dirk Pranke, 2015-09-17 20:07:27]

lgtm

[Roland McGrath, 2015-09-17 20:08:08]

The CQ bit was checked by mcgrathr@chromium.org

[commit-bot: I haz the power, 2015-09-17 20:08:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1350093002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1350093002/1

[commit-bot: I haz the power, 2015-09-17 20:13:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-17 20:14:42]

Patchset 1 (id:??) landed as
https://crrev.com/5927063a80783f2873f6be1e5948d9382028fff3
Cr-Commit-Position: refs/heads/master@{#349478}