Revert 244098 "Fix chromeos=1 so Pulse is preferred when use_cra..."

Revert 244098 "Fix chromeos=1 so Pulse is preferred when use_cra..."

Speculative revert to fix link errors on ChromiumOS amd64 BuildPackages,
complaining about undefined reference to 'alsa_util::BitsToFormat(int)'.

> Fix chromeos=1 so Pulse is preferred when use_cras=0.
> 
> Merges the settings for use_alsa and use_pulseaudio for selection
> based on use_cras.
> 
> BUG=none
> TEST=Pulse is available along with ALSA when chromeos=1.
> 
> Review URL: https://codereview.chromium.org/132773002

TBR=dalecurtis@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=244100

[dcheng, 2014-01-10 05:52:31]

Committed patchset #1 manually as r244100.

[DaleCurtis, 2014-01-10 17:55:49]

Do you have a link to the builder? I didn't get an email about this failure.

[DaleCurtis, 2014-01-10 17:57:17]

Nevermind, found it:
http://build.chromium.org/p/chromium.chromiumos/builders/ChromiumOS%20%28amd6...