Made time limit for event processing configurable; cleaned-up duplicate code.

Change-Id: I08e7f1c9f4cdbd6404f1eb5e3544989e7a728d92
diff --git a/core/net/src/test/java/org/onosproject/net/link/impl/LinkManagerTest.java b/core/net/src/test/java/org/onosproject/net/link/impl/LinkManagerTest.java
index ac6d1eb..cacf082 100644
--- a/core/net/src/test/java/org/onosproject/net/link/impl/LinkManagerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/link/impl/LinkManagerTest.java
@@ -37,7 +37,7 @@
 import org.onosproject.net.link.LinkService;
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
-import org.onosproject.event.impl.TestEventDispatcher;
+import org.onosproject.common.event.impl.TestEventDispatcher;
 import org.onosproject.net.device.impl.DeviceManager;
 import org.onosproject.store.trivial.impl.SimpleLinkStore;