Revert "SERVER-70640 Add migrationConcurrency to serverStatus"

This reverts commit cc379041cd9c42ab9d2b1eed97011e3f7d6189ef.

4 files changed, 0 insertions, 15 deletions

diff --git a/jstests/sharding/move_chunk_concurrent_cloning.js b/jstests/sharding/move_chunk_concurrent_cloning.js
index 8ce55176b3c..dfd04e3eb5e 100644
--- a/jstests/sharding/move_chunk_concurrent_cloning.js
+++ b/jstests/sharding/move_chunk_concurrent_cloning.js
@@ -93,12 +93,6 @@ const runParallelMoveChunk = (numThreads) => {
     shardKeyIdx--;
     assert.eq(shardKeyIdx, kInitialLoadFinalKey + 1000);
 
-    // server Status on the receiving shard
-    var serverStatus = st.shard1.getDB('admin').runCommand({serverStatus: 1});
-
-    assert.eq(kThreadCount,
-              serverStatus.shardingStatistics.chunkMigrationConcurrency,
-              tojson(serverStatus));
     st.stop();
     MongoRunner.stopMongod(staticMongod);
 };
diff --git a/src/mongo/db/s/migration_destination_manager.cpp b/src/mongo/db/s/migration_destination_manager.cpp
index 2f5230b1702..4cbcf6cb260 100644
--- a/src/mongo/db/s/migration_destination_manager.cpp
+++ b/src/mongo/db/s/migration_destination_manager.cpp
@@ -489,9 +489,6 @@ Status MigrationDestinationManager::start(OperationContext* opCtx,
     _sessionMigration = std::make_unique<SessionCatalogMigrationDestination>(
         _nss, _fromShard, *_sessionId, _cancellationSource.token());
     ShardingStatistics::get(opCtx).countRecipientMoveChunkStarted.addAndFetch(1);
-    if (mongo::feature_flags::gConcurrencyInChunkMigration.isEnabledAndIgnoreFCV())
-        ShardingStatistics::get(opCtx).chunkMigrationConcurrencyCnt.store(
-            chunkMigrationConcurrency.load());
 
     _migrateThreadHandle = stdx::thread([this, cancellationToken = _cancellationSource.token()]() {
         _migrateThread(cancellationToken);
diff --git a/src/mongo/db/s/sharding_statistics.cpp b/src/mongo/db/s/sharding_statistics.cpp
index ea17a500202..a32642776dd 100644
--- a/src/mongo/db/s/sharding_statistics.cpp
+++ b/src/mongo/db/s/sharding_statistics.cpp
@@ -34,7 +34,6 @@
 #include "mongo/bson/bsonobjbuilder.h"
 #include "mongo/db/operation_context.h"
 #include "mongo/db/service_context.h"
-#include "mongo/s/sharding_feature_flags_gen.h"
 
 namespace mongo {
 namespace {
@@ -70,8 +69,6 @@ void ShardingStatistics::report(BSONObjBuilder* builder) const {
                     countDonorMoveChunkAbortConflictingIndexOperation.load());
     builder->append("unfinishedMigrationFromPreviousPrimary",
                     unfinishedMigrationFromPreviousPrimary.load());
-    if (mongo::feature_flags::gConcurrencyInChunkMigration.isEnabledAndIgnoreFCV())
-        builder->append("chunkMigrationConcurrency", chunkMigrationConcurrencyCnt.load());
 }
 
 }  // namespace mongo
diff --git a/src/mongo/db/s/sharding_statistics.h b/src/mongo/db/s/sharding_statistics.h
index 91a10cc4308..b4332452a8d 100644
--- a/src/mongo/db/s/sharding_statistics.h
+++ b/src/mongo/db/s/sharding_statistics.h
@@ -104,9 +104,6 @@ struct ShardingStatistics {
     // completion. Valid only when this process is the repl set primary.
     AtomicWord<long long> unfinishedMigrationFromPreviousPrimary{0};
 
-    // Current number for chunkMigrationConcurrency that defines concurrent fetchers and inserters
-    // used for _migrateClone(step 4) of chunk migration
-    AtomicWord<int> chunkMigrationConcurrencyCnt{1};
     /**
      * Obtains the per-process instance of the sharding statistics object.
      */