diff --git a/sql/log.cc b/sql/log.cc
index 9b5b2ae5a6c..f12cedfbf05 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -3403,35 +3403,6 @@ void THD::binlog_set_stmt_begin() {
   trx_data->before_stmt_pos= pos;
 }
 
-int THD::binlog_flush_transaction_cache()
-{
-  DBUG_ENTER("binlog_flush_transaction_cache");
-  binlog_trx_data *trx_data= (binlog_trx_data*)
-    thd_get_ha_data(this, binlog_hton);
-  DBUG_PRINT("enter", ("trx_data=0x%lu", (ulong) trx_data));
-  if (trx_data)
-    DBUG_PRINT("enter", ("trx_data->before_stmt_pos=%lu",
-                         (ulong) trx_data->before_stmt_pos));
-
-  /*
-    Write the transaction cache to the binary log.  We don't flush and
-    sync the log file since we don't know if more will be written to
-    it. If the caller want the log file sync:ed, the caller has to do
-    it.
-
-    The transaction data is only reset upon a successful write of the
-    cache to the binary log.
-  */
-
-  if (trx_data && likely(mysql_bin_log.is_open())) {
-    if (int error= mysql_bin_log.write_cache(&trx_data->trans_log, true, true))
-      DBUG_RETURN(error);
-    trx_data->reset();
-  }
-
-  DBUG_RETURN(0);
-}
-
 
 /*
   Write a table map to the binary log.
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 5f2b50f48b8..b660c615920 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -1243,7 +1243,6 @@ public:
     Public interface to write RBR events to the binlog
   */
   void binlog_start_trans_and_stmt();
-  int binlog_flush_transaction_cache();
   void binlog_set_stmt_begin();
   int binlog_write_table_map(TABLE *table, bool is_transactional);
   int binlog_write_row(TABLE* table, bool is_transactional,