Merge "Revert "Keep _FORTIFY_SOURCE=2 for libvulkan when enabling _FORT..."" into main am: 9639da0

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3398713

Change-Id: Iaefec7f0b2806abe155562a2b5767a8bce24c575
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Author: Liana Kazanova

vulkan/libvulkan/Android.bp

@@ -71,11 +71,6 @@ cc_library_shared {
         "-fstandalone-debug",
 
         //"-DLOG_NDEBUG=0",
-
-        // Keep -D_FORTIFY_SOURCE=2 in libvulkan.
-        // See b/291762537
-        "-U_FORTIFY_SOURCE",
-        "-D_FORTIFY_SOURCE=2",
     ],
 
     cppflags: [