Fixed a warning.

src/main/java/com/sk89q/worldedit/spout/WorldEditPlugin.java

@@ -48,9 +48,6 @@ import java.util.zip.ZipEntry;
  * @author sk89q
  */
 public class WorldEditPlugin extends CommonPlugin implements Named {
-
-    private static final long serialVersionUID = 4506722000667924884L;
-
     /**
      * The server interface that all server-related API goes through.
      */