IB: wrong 'interface consistency' (fixes #47)

storage/innobase/row/row0mysql.cc

@@ -1965,7 +1965,6 @@ row_update_for_mysql_using_upd_graph(
 		upd_t* uvect = node->update;
 		upd_field_t* ufield;
 		dict_col_t* col;
-		const mysql_row_templ_t* t;
 		unsigned col_idx;
 		if (node->is_delete) {
 			ufield = &uvect->fields[0];
@@ -1992,11 +1991,6 @@ row_update_for_mysql_using_upd_graph(
 
 		uvect->n_fields++;
 		ut_ad(node->in_mysql_interface); // otherwise needs to recalculate node->cmpl_info
-
-		/* Return trx_id back to mysql_rec (for the sake of interface consistency). */
-		t = &prebuilt->mysql_template[col_idx];
-		ut_ad(t->mysql_col_len == 8);
-		int8store(&mysql_rec[t->mysql_col_offset], trx->id);
 	}
 
 	ut_a(node->pcur->rel_pos == BTR_PCUR_ON);