Avoid unnecessary unboxing

Change-Id: I8f4b0e11bbd236553df1a392700bf40c900c3456
diff --git a/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbBridgeConfig.java b/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbBridgeConfig.java
index 30c7526..0eaf5cd 100644
--- a/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbBridgeConfig.java
+++ b/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbBridgeConfig.java
@@ -124,7 +124,7 @@
         String ip = deviceId.toString().substring(fistColon + 1, lastColon);

         String port = deviceId.toString().substring(lastColon + 1);

         IpAddress ipAddress = IpAddress.valueOf(ip);

-        long portL = Long.valueOf(port).longValue();

+        long portL = Long.parseLong(port);

         return new OvsdbNodeId(ipAddress, portL);

     }