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/face/internal-face.t.cpp b/tests/daemon/face/internal-face.t.cpp
index dfb9888..4c1618b 100644
--- a/tests/daemon/face/internal-face.t.cpp
+++ b/tests/daemon/face/internal-face.t.cpp
@@ -27,6 +27,7 @@
 
 #include "transport-test-common.hpp"
 #include "tests/key-chain-fixture.hpp"
+#include "tests/daemon/global-io-fixture.hpp"
 
 namespace nfd {
 namespace face {
@@ -36,7 +37,7 @@
 
 BOOST_AUTO_TEST_SUITE(Face)
 
-class InternalFaceFixture : public UnitTestTimeFixture, public KeyChainFixture
+class InternalFaceFixture : public GlobalIoTimeFixture, public KeyChainFixture
 {
 public:
   InternalFaceFixture()