Silence API out of date warning on config load

src/main/java/com/gmail/nossr50/config/BukkitConfig.java

@@ -67,7 +67,7 @@ public abstract class BukkitConfig {
             config.options().parseComments(true);
         } catch (NoSuchMethodError e) {
             //e.printStackTrace();
-            mcMMO.p.getLogger().severe("Your Spigot/CraftBukkit API is out of date, update your server software!");
+            // mcMMO.p.getLogger().severe("Your Spigot/CraftBukkit API is out of date, update your server software!");
         }
 
         config.options().copyDefaults(true);

src/main/java/com/gmail/nossr50/metadata/MobMetadataService.java

@@ -17,6 +17,7 @@ import java.util.WeakHashMap;
 
 import static com.gmail.nossr50.metadata.MetadataService.*;
 
+//TODO: Use SpawnReason where appropriate instead of MobMetaFlagType
 public class MobMetadataService {
     private final @NotNull WeakHashMap<Entity, HashSet<MobMetaFlagType>> mobRegistry; //transient data
     private final @NotNull EnumMap<MobMetaFlagType, NamespacedKey> mobFlagKeyMap; //used for persistent data
@@ -54,17 +55,6 @@ public class MobMetadataService {
         }
     }
 
-    /**
-     * Helper method to simplify generating namespaced keys
-     *
-     * @param key the {@link String} value of the key
-     *
-     * @return the generated {@link NamespacedKey}
-     */
-    private @NotNull NamespacedKey getNamespacedKey(@NotNull String key) {
-        return new NamespacedKey(mcMMO.p, key);
-    }
-
     /**
      * Whether or not a target {@link LivingEntity} has a specific mcMMO mob flags
      *