Revert "Also build the compile-time tests with _FORTIFY_SOURCE=3."

This reverts commit f9f177992373ddaba9a3912ad95d5685a1c78534.

Reason for revert: Droidmonitor created revert due to b/402820333. Will be verifying through ABTD before submission.

Change-Id: I89169290908ace1bd25855b4b68ad86c42fc18d7
diff --git a/tests/Android.bp b/tests/Android.bp
index aeb4587..51afa55 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -1453,13 +1453,3 @@
         "-D_FORTIFY_SOURCE=2",
     ],
 }
-
-cc_library_static {
-    name: "bionic-compile-time-tests3-clang++",
-    defaults: [
-        "bionic_compile_time_tests_defaults",
-    ],
-    cppflags: [
-        "-D_FORTIFY_SOURCE=3",
-    ],
-}