HBASE-29586 Setting hbase.oldwals.cleaner.thread.size check

Author: wangxiangdong123

hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/LogCleaner.java

@@ -101,7 +101,6 @@ protected boolean validate(Path file) {
   public void onConfigurationChange(Configuration conf) {
     int newSize = conf.getInt(OLD_WALS_CLEANER_THREAD_SIZE, DEFAULT_OLD_WALS_CLEANER_THREAD_SIZE);
     if (newSize <= 0) {
-      newSize = DEFAULT_OLD_WALS_CLEANER_THREAD_SIZE;
       LOG.warn(
         "The configuration {} has been set to an invalid value {}, "
           + "the default value {} will be used, no need to update.",