Merge "Revert "Also build the compile-time tests with _FORTIFY_SOURCE=3."" into main am: 306fa9c075

Original change: https://android-review.googlesource.com/c/platform/bionic/+/3539721

Change-Id: I971b2c98fa7332d9223c209f429baee80dcaca39
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>