Revert "Workaround Mac align bug for observer_ and crit_."

This reverts commit r8528 which should be safe after r8646.

BUG=
R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/40249004

Cr-Commit-Position: refs/heads/master@{#8648}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8648 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed