Reduce usage of std::bind()

C++14 lambdas are easier to read, easier to debug,
and can usually be better optimized by the compiler.

Change-Id: I294f275904f91942a8de946fe63e77078a7608a6
diff --git a/tests/daemon/fw/best-route-strategy.t.cpp b/tests/daemon/fw/best-route-strategy.t.cpp
index 5066cca..7293762 100644
--- a/tests/daemon/fw/best-route-strategy.t.cpp
+++ b/tests/daemon/fw/best-route-strategy.t.cpp
@@ -96,7 +96,7 @@
   // more often than DEFAULT_MIN_RETX_INTERVAL
   scheduler::EventId retxFrom4Evt;
   size_t nSentLast = strategy.sendInterestHistory.size();
-  time::steady_clock::TimePoint timeSentLast = time::steady_clock::now();
+  auto timeSentLast = time::steady_clock::now();
   std::function<void()> periodicalRetxFrom4; // let periodicalRetxFrom4 lambda capture itself
   periodicalRetxFrom4 = [&] {
     pitEntry->insertOrUpdateInRecord(*face4, *interest);