ONOS-6886 Move interface classes from incubator to core

Change-Id: Iaae4d98279e4b77fc3f0b5a63d547921f93aeb46
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java b/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
index 205793f..4125399 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
@@ -24,7 +24,7 @@
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.incubator.net.intf.Interface;
+import org.onosproject.net.intf.Interface;
 import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.store.AbstractStore;
 import org.onosproject.store.StoreDelegate;
@@ -231,4 +231,4 @@
 
         }
     }
-}
\ No newline at end of file
+}