tests: remove obsolete makeLink helper function

This is a quick fix for a build error caused by the removal
of some deprecated functions from ndn-cxx.

Change-Id: I4df5bdd426743774b08f5966eed28a27f2af1279
Refs: #4055
diff --git a/tests/peek/ndnpeek.t.cpp b/tests/peek/ndnpeek.t.cpp
index a54426b..b44e7c5 100644
--- a/tests/peek/ndnpeek.t.cpp
+++ b/tests/peek/ndnpeek.t.cpp
@@ -20,6 +20,7 @@
 #include "tools/peek/ndnpeek/ndnpeek.hpp"
 
 #include "tests/test-common.hpp"
+
 #include <ndn-cxx/util/dummy-client-face.hpp>
 
 #include <boost/mpl/vector.hpp>
@@ -178,7 +179,6 @@
   options.minSuffixComponents = 1;
   options.maxSuffixComponents = 1;
   options.interestLifetime = time::milliseconds(200);
-  options.link = makeLink("/net/ndnsim", {{10, "/telia/terabits"}, {20, "/ucla/cs"}});
   options.mustBeFresh = true;
   options.wantRightmostChild = true;
   initialize(options);
@@ -199,7 +199,7 @@
   BOOST_CHECK_EQUAL(face.sentInterests.back().getMaxSuffixComponents(), 1);
   BOOST_CHECK_EQUAL(face.sentInterests.back().getMinSuffixComponents(), 1);
   BOOST_CHECK_EQUAL(face.sentInterests.back().getInterestLifetime(), time::milliseconds(200));
-  BOOST_CHECK_EQUAL(face.sentInterests.back().getForwardingHint(), options.link->getDelegationList());
+  BOOST_CHECK_EQUAL(face.sentInterests.back().getForwardingHint().size(), 0);
   BOOST_CHECK_EQUAL(face.sentInterests.back().getMustBeFresh(), true);
   BOOST_CHECK_EQUAL(face.sentInterests.back().getChildSelector(), 1);
   BOOST_CHECK(peek->getResultCode() == ResultCode::DATA);
diff --git a/tests/test-common.cpp b/tests/test-common.cpp
index 37d9d99..fe45dd9 100644
--- a/tests/test-common.cpp
+++ b/tests/test-common.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,
@@ -98,18 +98,9 @@
   fakeSignature.setValue(ndn::encoding::makeEmptyBlock(tlv::SignatureValue));
   data.setSignature(fakeSignature);
   data.wireEncode();
-
   return data;
 }
 
-shared_ptr<Link>
-makeLink(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> delegations)
-{
-  auto link = make_shared<Link>(name, delegations);
-  signData(link);
-  return link;
-}
-
 lp::Nack
 makeNack(const Interest& interest, lp::NackReason reason)
 {
@@ -123,9 +114,7 @@
 {
   Interest interest(name);
   interest.setNonce(nonce);
-  lp::Nack nack(std::move(interest));
-  nack.setReason(reason);
-  return nack;
+  return makeNack(interest, reason);
 }
 
 } // namespace tests
diff --git a/tests/test-common.hpp b/tests/test-common.hpp
index f4c16f0..be0b63d 100644
--- a/tests/test-common.hpp
+++ b/tests/test-common.hpp
@@ -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,
@@ -28,9 +28,8 @@
 
 #include "boost-test.hpp"
 
-#include <ndn-cxx/interest.hpp>
 #include <ndn-cxx/data.hpp>
-#include <ndn-cxx/link.hpp>
+#include <ndn-cxx/interest.hpp>
 #include <ndn-cxx/lp/nack.hpp>
 #include <ndn-cxx/util/time-unit-test-clock.hpp>
 
@@ -107,13 +106,6 @@
   return data;
 }
 
-/** \brief create a Link object with fake signature
- *  \note Link may be modified afterwards without losing the fake signature.
- *        If a real signature is desired, sign again with KeyChain.
- */
-shared_ptr<Link>
-makeLink(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> delegations);
-
 /** \brief create a Nack
  *  \param interest Interest
  *  \param reason Nack reason