Remove flag track-allocation-sites.

Remove flag track-allocation-sites.

The flag has been on in the build for ~9 months, and we aren't likely to turn it off. The only customer of the flag is a set of tests that want to verify transitioning behavior in isolation. This CL removes the flag and updates those tests to get what they want without the flag.

R=verwaest@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=18385

Committed: https://code.google.com/p/v8/source/detail?r=18474

[mvstanton, 2013-12-09 14:20:19]

Hi Benedikt, per our discussion, this is a cleanup CL that removes an
unnecessary flag.
Thanks,
--Michael

[mvstanton, 2013-12-13 14:17:56]

Hi Benedikt,
I removed the unfortunate ClearTypeFeedback hack. PTAL, thx!
--Michael

[mvstanton, 2013-12-17 13:56:24]

Hi Toon, since Benedikt is out for a while can you have a look? We spoke about
this a week ago...
--Michael

[Toon Verwaest, 2013-12-18 14:06:35]

lgtm

[mvstanton, 2013-12-20 11:46:48]

Committed patchset #4 manually as r18385 (presubmit successful).

[mvstanton, 2014-01-07 15:58:45]

Committed patchset #5 manually as r18474 (presubmit successful).