Fix for ONOS-5175. GroupId refactoring.

Science DefaultGroupId was deprecated, remove it from ONOS

Change-Id: I82394e58ec1ba10c37492ed77546e233de9f934f
diff --git a/web/api/src/test/java/org/onosproject/rest/resources/GroupsResourceTest.java b/web/api/src/test/java/org/onosproject/rest/resources/GroupsResourceTest.java
index 0e494ef..731af65 100644
--- a/web/api/src/test/java/org/onosproject/rest/resources/GroupsResourceTest.java
+++ b/web/api/src/test/java/org/onosproject/rest/resources/GroupsResourceTest.java
@@ -35,7 +35,6 @@
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.DefaultApplicationId;
-import org.onosproject.core.DefaultGroupId;
 import org.onosproject.core.GroupId;
 import org.onosproject.net.DefaultDevice;
 import org.onosproject.net.Device;
@@ -127,7 +126,7 @@
 
         @Override
         public GroupId id() {
-            return new DefaultGroupId((int) baseValue + 55);
+            return new GroupId((int) baseValue + 55);
         }
 
         @Override