face: replace EventEmitter usage with Signal

refs #2300

Change-Id: I17d0d65d2c474b17dd9f23f271a6144b0b4fbc07
diff --git a/tests/daemon/mgmt/channel-status-publisher.cpp b/tests/daemon/mgmt/channel-status-publisher.cpp
index 370efe1..6ab42a3 100644
--- a/tests/daemon/mgmt/channel-status-publisher.cpp
+++ b/tests/daemon/mgmt/channel-status-publisher.cpp
@@ -144,8 +144,7 @@
       m_expectedEntries[expectedEntry.getLocalUri()] = expectedEntry;
     }
 
-  m_face->onReceiveData +=
-    bind(&ChannelStatusPublisherFixture::validatePublish, this, _1);
+  m_face->onReceiveData.connect(bind(&ChannelStatusPublisherFixture::validatePublish, this, _1));
 
   m_publisher.publish();
   BOOST_REQUIRE(m_finished);
@@ -171,8 +170,7 @@
       m_expectedEntries[expectedEntry.getLocalUri()] = expectedEntry;
     }
 
-  m_face->onReceiveData +=
-    bind(&ChannelStatusPublisherFixture::validatePublish, this, _1);
+  m_face->onReceiveData.connect(bind(&ChannelStatusPublisherFixture::validatePublish, this, _1));
 
   m_publisher.publish();
   BOOST_REQUIRE(m_finished);