Remove duplicate tag

Author: henriknyman

modules/ROOT/pages/subqueries/subqueries-in-transactions.adoc

@@ -1074,7 +1074,6 @@ This method benefits from the performance of concurrent transactions while avoid
 
 .Avoiding deadlocks by dividing an import task into a data-independent concurrent subquery followed by a data-dependent serial subquery
 // tag::subqueries_in_transactions_deadlock_example_2[]
-// tag::subqueries_in_transactions_deadlock_example_2[]
 [source, cypher]
 ----
 LOAD CSV WITH HEADERS FROM 'https://data.neo4j.com/importing-cypher/movies.csv' AS row