[hue] Fix HueBridgeNupnpDiscoveryOSGITest

Signed-off-by: Jacob Laursen <jacob-github@vindvejr.dk>

Author: jlaur

itests/org.openhab.binding.hue.tests/src/main/java/org/openhab/binding/hue/internal/discovery/HueBridgeNupnpDiscoveryOSGITest.java

@@ -217,12 +217,6 @@ public void thingRemoved(DiscoveryService source, ThingUID thingUID) {
                     @Nullable Collection<ThingTypeUID> thingTypeUIDs, @Nullable ThingUID bridgeUID) {
                 return null;
             }
-
-            @Override
-            public @Nullable Collection<ThingUID> removeOlderResults(DiscoveryService source, long timestamp,
-                    @Nullable Collection<ThingTypeUID> thingTypeUIDs, @Nullable ThingUID bridgeUID) {
-                return null;
-            }
         });
 
         // missing ip