Revert "Use thumb versions of external libraries with ARMv7."

Revert "Use thumb versions of external libraries with ARMv7."

This reverts commit 3572927ce7c9ce6d528820f9575a93985f9309bf.

Reason: 9% regression on thread_renderer_compositor_cpu_time_per_frame/http___slashdot.org_.

BUG=431612
TBR=brettw

Committed: https://crrev.com/e7f4fa57138c2ed44235456d8bcfbe165ad1938c
Cr-Commit-Position: refs/heads/master@{#306589}

[pasko, 2014-12-03 10:42:28]

pasko@chromium.org changed reviewers:
+ clamy@chromium.org, fdegans@chromium.org, thakis@chromium.org,
tonyg@chromium.org

[pasko, 2014-12-03 10:43:08]

clamy: please sanity-check
others: FYI

[clamy, 2014-12-03 10:46:02]

Thanks. LGTM.

[pasko, 2014-12-03 10:46:19]

The CQ bit was checked by pasko@chromium.org

[commit-bot: I haz the power, 2014-12-03 10:47:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/772123003/1

[commit-bot: I haz the power, 2014-12-03 10:51:21]

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

[commit-bot: I haz the power, 2014-12-03 10:51:22]

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

[pasko, 2014-12-03 11:44:28]

The CQ bit was checked by pasko@chromium.org

[commit-bot: I haz the power, 2014-12-03 11:45:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/772123003/1

[commit-bot: I haz the power, 2014-12-03 11:47:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-03 11:48:17]

Patchset 1 (id:??) landed as
https://crrev.com/e7f4fa57138c2ed44235456d8bcfbe165ad1938c
Cr-Commit-Position: refs/heads/master@{#306589}