Revert of Roll Clang 223108:228129

sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc

Index: sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc
diff --git a/sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc b/sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc
index 6efc4b6344aa75684abdccc6fc5dc6ceced4c028..40a99e4b6abd22a875e4c09c95c5caa5ac254f31 100644
--- a/sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc
+++ b/sandbox/linux/bpf_dsl/bpf_dsl_more_unittest.cc
@@ -652,10 +652,6 @@
   return UnsafeTrap(AllowRedirectedSyscall, NULL);
 }
 
-#if !defined(ADDRESS_SANITIZER)
-// ASan does not allow changing the signal handler for SIGBUS, and treats it as
-// a fatal signal.
-
 int bus_handler_fd_ = -1;
 
 void SigBusHandler(int, siginfo_t* info, void* void_context) {
@@ -684,7 +680,6 @@
   BPF_ASSERT(close(fds[1]) == 0);
   BPF_ASSERT(c == 0x55);
 }
-#endif  // !defined(ADDRESS_SANITIZER)
 
 BPF_TEST_C(SandboxBPF, SigMask, RedirectAllSyscallsPolicy) {
   // Signal masks are potentially tricky to handle. For instance, if we