[Improvement-18056] Clean up unused methods and classes in the dolphinschudler-extract module

dolphinscheduler-extract/dolphinscheduler-extract-base/src/main/java/org/apache/dolphinscheduler/extract/base/utils/ChannelUtils.java

@@ -31,16 +31,6 @@ private ChannelUtils() {
         throw new IllegalStateException(ChannelUtils.class.getName());
     }
 
-    /**
-     * get local address
-     *
-     * @param channel channel
-     * @return local address
-     */
-    public static String getLocalAddress(Channel channel) {
-        return NetUtils.getHost(((InetSocketAddress) channel.localAddress()).getAddress());
-    }
-
     /**
      * get remote address
      *

dolphinscheduler-extract/dolphinscheduler-extract-master/src/main/java/org/apache/dolphinscheduler/extract/master/command/AbstractCommandParam.java

@@ -30,8 +30,6 @@
 @NoArgsConstructor
 public abstract class AbstractCommandParam implements ICommandParam {
 
-    protected boolean subWorkflowInstance;
-
     protected List<Long> startNodes;
 
     protected List<Property> commandParams;

dolphinscheduler-extract/dolphinscheduler-extract-master/src/main/java/org/apache/dolphinscheduler/extract/master/command/ICommandParam.java

@@ -52,11 +52,6 @@ public interface ICommandParam {
      */
     String getTimeZone();
 
-    /**
-     * Whether the command is used to trigger a sub workflow instance.
-     */
-    boolean isSubWorkflowInstance();
-
     /**
      * Get the command type.
      */