Don't withdraw the intents during SDN-IP shutdown, because this creates

flux in the dataplane during switchover to another SDN-IP instance being
the new SDN-IP leader.

Change-Id: I93e271770001678c3438637d5a804d934cd83848

@@ -105,6 +105,12 @@ public class IntentSynchronizer {
             }
 
             //
+            // NOTE: We don't withdraw the intents during shutdown, because
+            // it creates flux in the data plane during switchover.
+            //
+
+            /*
+            //
             // Build a batch operation to withdraw all intents from this
             // application.
             //
@@ -136,6 +142,7 @@ public class IntentSynchronizer {
             peerIntents.clear();
             routeIntents.clear();
             log.debug("SDN-IP Intent Synchronizer shutdown completed");
+            */
         }
     }