[ONOS-6224] L3VPN service delete

Change-Id: I2eabb231def39dba6613dc5b95f2b16594133ad4
diff --git a/apps/l3vpn/netl3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java b/apps/l3vpn/netl3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
index 6debaf4..09c2f6a 100644
--- a/apps/l3vpn/netl3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
+++ b/apps/l3vpn/netl3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
@@ -198,7 +198,7 @@
     public void addInterfaceInfo(AccessInfo accessInfo, InterfaceInfo intInfo) {
         checkNotNull(accessInfo, ACCESS_INFO_NULL);
         checkNotNull(intInfo, INT_INFO_NULL);
-        intInfoMap.putIfAbsent(accessInfo, intInfo);
+        intInfoMap.put(accessInfo, intInfo);
     }
 
     @Override