ONOS-2846, ONOS-2812 Refactored link discovery pruning to be centralized rather than being with each link discovery helper.

This will make it behave properly in a distributed context.

Change-Id: I9b9788336468c41d1cf506e388306ad9136d5853
diff --git a/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java b/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
index bba031f..b4b7b7b 100644
--- a/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
+++ b/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
@@ -48,6 +48,7 @@
 import org.onosproject.net.link.LinkProvider;
 import org.onosproject.net.link.LinkProviderRegistry;
 import org.onosproject.net.link.LinkProviderService;
+import org.onosproject.net.link.LinkServiceAdapter;
 import org.onosproject.net.packet.DefaultInboundPacket;
 import org.onosproject.net.packet.InboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
@@ -79,7 +80,8 @@
     private static Port pd4;
 
     private final LLDPLinkProvider provider = new LLDPLinkProvider();
-    private final TestLinkRegistry linkService = new TestLinkRegistry();
+    private final TestLinkRegistry linkRegistry = new TestLinkRegistry();
+    private final TestLinkService linkService = new TestLinkService();
     private final TestPacketService packetService = new TestPacketService();
     private final TestDeviceService deviceService = new TestDeviceService();
     private final TestMasterShipService masterService = new TestMasterShipService();
@@ -104,8 +106,9 @@
         provider.coreService = coreService;
 
         provider.deviceService = deviceService;
+        provider.linkService = linkService;
         provider.packetService = packetService;
-        provider.providerRegistry = linkService;
+        provider.providerRegistry = linkRegistry;
         provider.masterService = masterService;
 
         provider.activate(null);
@@ -498,4 +501,6 @@
     }
 
 
+    private class TestLinkService extends LinkServiceAdapter {
+    }
 }