tests: use ndn::util::Sha256 instead of ndn::crypto

refs #3940

Change-Id: I87c9cbfa9ae3592a053dd7eb0cb09d857668d111
diff --git a/tests/daemon/table/cs-policy-priority-fifo.t.cpp b/tests/daemon/table/cs-policy-priority-fifo.t.cpp
index 04a613f..b68729a 100644
--- a/tests/daemon/table/cs-policy-priority-fifo.t.cpp
+++ b/tests/daemon/table/cs-policy-priority-fifo.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -25,7 +25,6 @@
 
 #include "table/cs-policy-priority-fifo.hpp"
 #include "table/cs.hpp"
-#include <ndn-cxx/util/crypto.hpp>
 
 #include "tests/test-common.hpp"