Remove unused methods.

src/main/java/net/floodlightcontroller/core/internal/OFSwitchImpl.java

@@ -17,8 +17,6 @@
 
 package net.floodlightcontroller.core.internal;
 
-import java.util.List;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.openflow.protocol.statistics.OFDescriptionStatistics;
 
@@ -45,9 +43,4 @@ public class OFSwitchImpl extends OFSwitchBase {
     public boolean isFastPort(short port_num) {
         return false;
     }
-
-    @Override
-    public List<Short> getUplinkPorts() {
-        return null;
-    }
 }

src/test/java/net/floodlightcontroller/core/internal/OFSwitchBaseTest.java

@@ -92,12 +92,6 @@ public class OFSwitchBaseTest {
             return false;
         }
 
-        @Override
-        public List<Short> getUplinkPorts() {
-            // TODO Auto-generated method stub
-            return null;
-        }
-
         @Override
         public void write(OFMessage msg, FloodlightContext cntx) {
             blockMessage = msg;

src/test/java/net/floodlightcontroller/util/OFMessageDamperMockSwitch.java

@@ -385,12 +385,6 @@ public class OFMessageDamperMockSwitch implements IOFSwitch {
         return false;
     }
 
-    @Override
-    public List<Short> getUplinkPorts() {
-        fail("Unexpected method call");
-        return null;
-    }
-
     @Override
     public boolean attributeEquals(String name, Object other) {
         fail("Unexpected method call");