DOCS-12171: Fixed mis-backported note

Author: ravindk89

source/reference/write-concern.txt

@@ -22,13 +22,6 @@ to :doc:`replica sets </replication>` or to :doc:`sharded clusters
 </sharding>`. In sharded clusters, :binary:`~bin.mongos` instances will
 pass the write concern on to the shards.
 
-.. note::
-
-   For :doc:`multi-document transactions </core/transactions>`, you set
-   the write concern at the transaction level, not at the individual
-   operation level. Do not explicitly set the write concern for
-   individual write operations in a transaction.
-
 Write Concern Specification
 ---------------------------