[2587] Some final cleanups

- added include scoped_ptr.hpp
- removed empty destructor

src/lib/testutils/srv_test.cc

@@ -27,6 +27,8 @@
 #include <testutils/dnsmessage_test.h>
 #include <testutils/srv_test.h>
 
+#include <boost/scoped_ptr.hpp>
+
 using namespace isc::dns;
 using namespace isc::util;
 using namespace isc::asiolink;

src/lib/testutils/srv_test.h

@@ -53,7 +53,6 @@ extern const unsigned int CD_FLAG;
 class SrvTestBase : public ::testing::Test {
 protected:
     SrvTestBase();
-    virtual ~SrvTestBase() {}
 
     /// Let the server process a DNS message.
     ///