remove docstatus again

Signed-off-by: Anthony Leong <aj.leong623@gmail.com>

Author: ajleong623

server/src/main/java/org/opensearch/index/shard/IndexingStats.java

@@ -164,8 +164,8 @@ public void writeTo(StreamOutput out) throws IOException {
         private long maxLastIndexRequestTimestamp;
 
         Stats() {
-            docStatusStats = new DocStatusStats();
-            // docStatusStats = null;
+            // docStatusStats = new DocStatusStats();
+            docStatusStats = null;
         }
 
         /**
@@ -204,7 +204,7 @@ public Stats(StreamInput in) throws IOException {
             } else {
                 maxLastIndexRequestTimestamp = 0L;
             }
-            if (in.getVersion().onOrAfter(Version.V_2_11_0) /*&& in.getVersion().onOrBefore(Version.V_3_3_0)*/) {
+            if (in.getVersion().onOrAfter(Version.V_2_11_0) && in.getVersion().onOrBefore(Version.V_3_3_0)) {
                 docStatusStats = in.readOptionalWriteable(DocStatusStats::new);
             } else {
                 docStatusStats = null;
@@ -278,60 +278,6 @@ public Stats(
             this.maxLastIndexRequestTimestamp = maxLastIndexRequestTimestamp;
         }
 
-        public Stats(
-            long indexCount,
-            long indexTimeInMillis,
-            long indexCurrent,
-            long indexFailedCount,
-            long deleteCount,
-            long deleteTimeInMillis,
-            long deleteCurrent,
-            long noopUpdateCount,
-            boolean isThrottled,
-            long throttleTimeInMillis
-        ) {
-            this(
-                indexCount,
-                indexTimeInMillis,
-                indexCurrent,
-                indexFailedCount,
-                deleteCount,
-                deleteTimeInMillis,
-                deleteCurrent,
-                noopUpdateCount,
-                isThrottled,
-                throttleTimeInMillis,
-                0L
-            );
-        }
-
-        public Stats(
-            long indexCount,
-            long indexTimeInMillis,
-            long indexCurrent,
-            long indexFailedCount,
-            long deleteCount,
-            long deleteTimeInMillis,
-            long deleteCurrent,
-            long noopUpdateCount,
-            boolean isThrottled,
-            long throttleTimeInMillis,
-            long maxLastIndexRequestTimestamp
-        ) {
-            this.indexCount = indexCount;
-            this.indexTimeInMillis = indexTimeInMillis;
-            this.indexCurrent = indexCurrent;
-            this.indexFailedCount = indexFailedCount;
-            this.deleteCount = deleteCount;
-            this.deleteTimeInMillis = deleteTimeInMillis;
-            this.deleteCurrent = deleteCurrent;
-            this.noopUpdateCount = noopUpdateCount;
-            this.isThrottled = isThrottled;
-            this.throttleTimeInMillis = throttleTimeInMillis;
-            this.docStatusStats = null;
-            this.maxLastIndexRequestTimestamp = maxLastIndexRequestTimestamp;
-        }
-
         public void add(Stats stats) {
             indexCount += stats.indexCount;
             indexTimeInMillis += stats.indexTimeInMillis;
@@ -443,7 +389,7 @@ public void writeTo(StreamOutput out) throws IOException {
             if (out.getVersion().onOrAfter(Version.V_3_2_0)) {
                 out.writeLong(maxLastIndexRequestTimestamp);
             }
-            if (out.getVersion().onOrAfter(Version.V_2_11_0)/* && out.getVersion().onOrBefore(Version.V_3_3_0)*/) {
+            if (out.getVersion().onOrAfter(Version.V_2_11_0) && out.getVersion().onOrBefore(Version.V_3_3_0)) {
                 out.writeOptionalWriteable(docStatusStats);
             }
         }