Revert "SERVER-67183 Add parallel fetchers and inserters for chunk migration"r6.0.5-rc1r6.0.5

This reverts commit ede7bdea766fff40678d03a7051b0d15de0fbba6.

1 files changed, 0 insertions, 10 deletions

diff --git a/src/mongo/db/s/start_chunk_clone_request.cpp b/src/mongo/db/s/start_chunk_clone_request.cpp
index 6838aedaffc..86567dce161 100644
--- a/src/mongo/db/s/start_chunk_clone_request.cpp
+++ b/src/mongo/db/s/start_chunk_clone_request.cpp
@@ -50,7 +50,6 @@ const char kToShardId[] = "toShardName";
 const char kChunkMinKey[] = "min";
 const char kChunkMaxKey[] = "max";
 const char kShardKeyPattern[] = "shardKeyPattern";
-const char kParallelMigration[] = "parallelMigrateCloneSupported";
 
 }  // namespace
 
@@ -153,14 +152,6 @@ StatusWith<StartChunkCloneRequest> StartChunkCloneRequest::createFromCommand(Nam
         }
     }
 
-    {
-        Status status = bsonExtractBooleanFieldWithDefault(
-            obj, kParallelMigration, false, &request._parallelFetchingSupported);
-        if (!status.isOK()) {
-            return status;
-        }
-    }
-
     request._migrationId = UUID::parse(obj);
     request._lsid =
         LogicalSessionId::parse(IDLParserErrorContext("StartChunkCloneRequest"), obj[kLsid].Obj());
@@ -188,7 +179,6 @@ void StartChunkCloneRequest::appendAsCommand(
     invariant(fromShardConnectionString.isValid());
 
     builder->append(kRecvChunkStart, nss.ns());
-    builder->append(kParallelMigration, true);
 
     migrationId.appendToBuilder(builder, kMigrationId);
     builder->append(kLsid, lsid.toBSON());