tests: unit-tests-{core,tools} no longer require a global io_service

BaseFixture is moved to tests/daemon and renamed to GlobalIoFixture

Refs: #4528
Change-Id: If9184e9f7f1d6072b0103d3ea3ca6c31a9e505c8
diff --git a/tests/daemon/fw/retx-suppression.t.cpp b/tests/daemon/fw/retx-suppression.t.cpp
index c96ac67..a0aab02 100644
--- a/tests/daemon/fw/retx-suppression.t.cpp
+++ b/tests/daemon/fw/retx-suppression.t.cpp
@@ -28,6 +28,7 @@
 #include "fw/retx-suppression-exponential.hpp"
 
 #include "tests/test-common.hpp"
+#include "tests/daemon/global-io-fixture.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
 
 namespace nfd {
@@ -37,7 +38,7 @@
 using namespace nfd::tests;
 
 BOOST_AUTO_TEST_SUITE(Fw)
-BOOST_FIXTURE_TEST_SUITE(TestRetxSuppression, UnitTestTimeFixture)
+BOOST_FIXTURE_TEST_SUITE(TestRetxSuppression, GlobalIoTimeFixture)
 
 BOOST_AUTO_TEST_CASE(Fixed)
 {