tests+tools: minor code cleanup

Change-Id: Ic3356d4a18a8e5eeb45fc076fc0563c3d1549c8a
diff --git a/tests/daemon/fw/best-route-strategy2.t.cpp b/tests/daemon/fw/best-route-strategy2.t.cpp
index 4101464..5776f6c 100644
--- a/tests/daemon/fw/best-route-strategy2.t.cpp
+++ b/tests/daemon/fw/best-route-strategy2.t.cpp
@@ -34,9 +34,7 @@
 namespace fw {
 namespace tests {
 
-using namespace nfd::tests;
-
-typedef StrategyTester<BestRouteStrategy2> BestRouteStrategy2Tester;
+using BestRouteStrategy2Tester = StrategyTester<BestRouteStrategy2>;
 NFD_REGISTER_STRATEGY(BestRouteStrategy2Tester);
 
 BOOST_AUTO_TEST_SUITE(Fw)