HDFS-15870. Remove unused configuration dfs.namenode.stripe.min (#2739)

Co-authored-by: tomscut <litao@bigo.sg>
(cherry picked from commit cdba06e380bce2ce7d8918e0772a5762fdba3122)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java

@@ -230,8 +230,6 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
       = "dfs.namenode.file.close.num-committed-allowed";
   public static final int     DFS_NAMENODE_FILE_CLOSE_NUM_COMMITTED_ALLOWED_DEFAULT
       = 0;
-  public static final String  DFS_NAMENODE_STRIPE_MIN_KEY = "dfs.namenode.stripe.min";
-  public static final int     DFS_NAMENODE_STRIPE_MIN_DEFAULT = 1;
   public static final String  DFS_NAMENODE_SAFEMODE_REPLICATION_MIN_KEY =
       "dfs.namenode.safemode.replication.min";
 

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tools/TestHdfsConfigFields.java

@@ -79,8 +79,6 @@ public class TestHdfsConfigFields extends TestConfigurationFieldsBase {
         .add("dfs.datanode.non.local.lazy.persist");
     configurationPropsToSkipCompare
         .add("dfs.namenode.tolerate.heartbeat.multiplier");
-    configurationPropsToSkipCompare
-        .add("dfs.namenode.stripe.min");
     configurationPropsToSkipCompare
         .add("dfs.namenode.replqueue.threshold-pct");