[Fix-7062][MasterServer] NPE when run switch conditions sub-process (#7687)

dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/task/ConditionTaskProcessor.java

@@ -50,8 +50,6 @@ public class ConditionTaskProcessor extends BaseTaskProcessor {
      */
     private DependentParameters dependentParameters;
 
-    ProcessInstance processInstance;
-
     /**
      * condition result
      */

dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/task/SubTaskProcessor.java

@@ -36,8 +36,6 @@ import java.util.concurrent.locks.ReentrantLock;
  */
 public class SubTaskProcessor extends BaseTaskProcessor {
 
-    private ProcessInstance processInstance;
-
     private ProcessInstance subProcessInstance = null;
     private TaskDefinition taskDefinition;
 

dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/task/SwitchTaskProcessor.java

@@ -44,9 +44,6 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
 /**
  * switch task processor
  */
@@ -54,9 +51,6 @@ public class SwitchTaskProcessor extends BaseTaskProcessor {
 
     protected final String rgex = "['\"]*\\$\\{(.*?)\\}['\"]*";
 
-    private TaskInstance taskInstance;
-
-    private ProcessInstance processInstance;
     TaskDefinition taskDefinition;
 
     private MasterConfig masterConfig = SpringApplicationContext.getBean(MasterConfig.class);;