Merge into master from pull request #151:

Fix warning (https://github.com/floodlight/floodlight/pull/151)

src/main/java/net/floodlightcontroller/routing/ForwardingBase.java

@@ -35,10 +35,7 @@ import net.floodlightcontroller.devicemanager.IDevice;
 import net.floodlightcontroller.devicemanager.IDeviceListener;
 import net.floodlightcontroller.devicemanager.IDeviceService;
 import net.floodlightcontroller.devicemanager.SwitchPort;
-import net.floodlightcontroller.packet.ARP;
 import net.floodlightcontroller.packet.Ethernet;
-import net.floodlightcontroller.packet.IPacket;
-import net.floodlightcontroller.packet.IPv4;
 import net.floodlightcontroller.routing.IRoutingService;
 import net.floodlightcontroller.routing.IRoutingDecision;
 import net.floodlightcontroller.routing.Link;
@@ -53,7 +50,6 @@ import org.openflow.protocol.OFPacketIn;
 import org.openflow.protocol.OFPacketOut;
 import org.openflow.protocol.OFPort;
 import org.openflow.protocol.OFType;
-import org.openflow.protocol.OFPacketIn.OFPacketInReason;
 import org.openflow.protocol.action.OFAction;
 import org.openflow.protocol.action.OFActionOutput;
 import org.openflow.util.HexString;