Switch to libbase SilentDeathTest.

Bug: http://b/184955378
Test: treehugger
Change-Id: Ie0849224074da92203340a741a86a24a4a3702c2
diff --git a/tests/semaphore_test.cpp b/tests/semaphore_test.cpp
index ed0fcf1..f3f6020 100644
--- a/tests/semaphore_test.cpp
+++ b/tests/semaphore_test.cpp
@@ -17,17 +17,18 @@
 #include <semaphore.h>
 
 #include <errno.h>
-#include <gtest/gtest.h>
 #include <limits.h>
 #include <pthread.h>
 #include <time.h>
 #include <unistd.h>
 
-#include "BionicDeathTest.h"
+#include <android-base/silent_death_test.h>
+#include <gtest/gtest.h>
+
 #include "SignalUtils.h"
 #include "private/bionic_constants.h"
 
-using semaphore_DeathTest = BionicDeathTest;
+using semaphore_DeathTest = SilentDeathTest;
 
 TEST(semaphore, sem_init) {
   sem_t s;