ONOS-6886 Move interface classes from incubator to core

Change-Id: Iaae4d98279e4b77fc3f0b5a63d547921f93aeb46
diff --git a/apps/routing/fibinstaller/src/test/java/org/onosproject/routing/fibinstaller/FibInstallerTest.java b/apps/routing/fibinstaller/src/test/java/org/onosproject/routing/fibinstaller/FibInstallerTest.java
index 365ee51..32cfd59 100644
--- a/apps/routing/fibinstaller/src/test/java/org/onosproject/routing/fibinstaller/FibInstallerTest.java
+++ b/apps/routing/fibinstaller/src/test/java/org/onosproject/routing/fibinstaller/FibInstallerTest.java
@@ -31,10 +31,10 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.incubator.net.intf.Interface;
-import org.onosproject.incubator.net.intf.InterfaceListener;
-import org.onosproject.incubator.net.intf.InterfaceService;
-import org.onosproject.incubator.net.intf.InterfaceServiceAdapter;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceListener;
+import org.onosproject.net.intf.InterfaceService;
+import org.onosproject.net.intf.InterfaceServiceAdapter;
 import org.onosproject.incubator.net.routing.ResolvedRoute;
 import org.onosproject.incubator.net.routing.Route;
 import org.onosproject.incubator.net.routing.RouteEvent;