Remove workaround for compiler bug from 2008.

Tested:
  The Apple bug report, rdar://6394306 title="Xcode generates bad Arm code if -fstack-protector -fstack-protector-all" had attached to it a test program showing Xcode 3 was broken. Since the test passes now, Xcode 4 appears fixed.

DELTA=4  (0 added, 4 deleted, 0 changed)

git-svn-id: http://google-toolbox-for-mac.googlecode.com/svn/trunk@606 7dc7ac4e-7543-0410-b95c-c1676fc8e2a3