binderStabilityTest: remove unused symbols

These are unused and missing from AOSP, so they are causing merge
conflicts here.

Bug: N/A
Test: N/A
Change-Id: I2ec6abc6259b34d14f523cd34f1627634b4a4864
diff --git a/libs/binder/tests/binderStabilityTest.cpp b/libs/binder/tests/binderStabilityTest.cpp
index ecd4f0d..52595e0 100644
--- a/libs/binder/tests/binderStabilityTest.cpp
+++ b/libs/binder/tests/binderStabilityTest.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <android/os/IServiceManager.h>
 #include <binder/Binder.h>
 #include <binder/IBinder.h>
 #include <binder/IPCThreadState.h>
@@ -31,7 +30,6 @@
 
 using namespace android;
 using android::binder::Status;
-using android::os::IServiceManager;
 
 const String16 kNoStabilityServer = String16("binder_stability_test_service_low");
 const String16 kCompilationUnitServer = String16("binder_stability_test_service_compl");