security: Remove old security framework

This commit also finalizes removal of CryptoPP dependency.

Change-Id: Ia670cbeaf21b28d3b93fd36bb3781da3ac822662
Refs: #4246, #3946
diff --git a/tests/unit-tests/identity-management-time-fixture.hpp b/tests/unit-tests/identity-management-time-fixture.hpp
index 99278d0..b07ea12 100644
--- a/tests/unit-tests/identity-management-time-fixture.hpp
+++ b/tests/unit-tests/identity-management-time-fixture.hpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2013-2017 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
@@ -28,18 +28,11 @@
 namespace ndn {
 namespace tests {
 
-class IdentityManagementV1TimeFixture : public UnitTestTimeFixture
-                                      , public IdentityManagementV1Fixture
+class IdentityManagementTimeFixture : public UnitTestTimeFixture
+                                    , public IdentityManagementFixture
 {
 };
 
-class IdentityManagementV2TimeFixture : public UnitTestTimeFixture
-                                      , public IdentityManagementV2Fixture
-{
-};
-
-using IdentityManagementTimeFixture = IdentityManagementV2TimeFixture;
-
 } // namespace tests
 } // namespace ndn