Remove crash on retail mode startup.

Remove crash on retail mode startup.

This CHECK was originally added because retail mode was supposed to not be supported anymore in R38:
https://chromium.googlesource.com/chromium/src.git/+/0dfff001d347879953bbeaa4e128c24e4e9fcc94

Since too many crashes were reported for R38, this removes the CHECK to support retail mode again.

BUG=422095
TEST=Ran retail mode in R38 and verified that it correctly logs in.

Committed: https://crrev.com/02708e2dd0522cdf46f6c370b0a4bd332f9ceabf
Cr-Commit-Position: refs/heads/master@{#299293}

[pneubeck (no reviews), 2014-10-13 08:59:18]

pneubeck@chromium.org changed reviewers:
+ nkostylev@chromium.org

[pneubeck (no reviews), 2014-10-13 08:59:18]

ptal.

Still testing whether that will fix retail mode in R38.
Potentially there are other problems as well.

[Nikita (slow), 2014-10-13 11:00:18]

lgtm if you've tested that crash is actually gone.

[pneubeck (no reviews), 2014-10-13 13:23:07]

just verified that it works in R38, which is the most important one.

[pneubeck (no reviews), 2014-10-13 13:23:12]

The CQ bit was checked by pneubeck@chromium.org

[commit-bot: I haz the power, 2014-10-13 13:23:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/651843002/1

[commit-bot: I haz the power, 2014-10-13 13:35:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-13 13:36:34]

Patchset 1 (id:??) landed as
https://crrev.com/02708e2dd0522cdf46f6c370b0a4bd332f9ceabf
Cr-Commit-Position: refs/heads/master@{#299293}