cdefs.h: add artificial attribute to FORTIFY_SOURCE functions

Otherwise the gcc compiler warning doesn't show up.

Delete some unittests. These unittests no longer compile cleanly
using -Wall -Werror, and rewriting them to compile cleanly
isn't feasible.

Bug: 17784968
Change-Id: I9bbdc7b6a1c2ac75754f5d0f90782e0dfae66721
2 files changed