Unpin the Clang version used by the OS X bots.
This CL only changes the Clang version to the one used by other bots.
Code cleanup will be done separately.

BUG=170629
TBR=thakis

Review URL: https://codereview.chromium.org/12457022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@195771 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed