coverity#983108: fix memory leak

Change-Id: Ief22e3cbb826ab0ceca5d199c1bfd21b46e87358

salhelper/qa/test_api.cxx

@@ -237,6 +237,7 @@ void Test::testDerivedSimpleReferenceObject() {
         delete static_cast< DerivedSimpleReferenceObject * >(p);
         throw;
     }
+    delete static_cast< DerivedSimpleReferenceObject * >(p);
 }
 
 CPPUNIT_TEST_SUITE_REGISTRATION(Test);