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/daemon/fw/retx-suppression-fixed.cpp b/daemon/fw/retx-suppression-fixed.cpp
index dddd742..50ade91 100644
--- a/daemon/fw/retx-suppression-fixed.cpp
+++ b/daemon/fw/retx-suppression-fixed.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2021,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -44,9 +44,9 @@
     return RetxSuppressionResult::NEW;
   }
 
-  time::steady_clock::TimePoint lastOutgoing = getLastOutgoing(pitEntry);
-  time::steady_clock::TimePoint now = time::steady_clock::now();
-  time::steady_clock::Duration sinceLastOutgoing = now - lastOutgoing;
+  auto lastOutgoing = getLastOutgoing(pitEntry);
+  auto now = time::steady_clock::now();
+  auto sinceLastOutgoing = now - lastOutgoing;
   bool shouldSuppress = sinceLastOutgoing < m_minRetxInterval;
   return shouldSuppress ? RetxSuppressionResult::SUPPRESS : RetxSuppressionResult::FORWARD;
 }