Transaction Log Can´t Clear

exec sp_configure 'allow updates', 1

reconfigure with override
go
update master..sysdatabases
    set category = 1
    where name = 'db_empl'
go

exec sp_repldone 0, 0, NULL, 0, 0, 1

dump tran db_empl with no_log
go
update master..sysdatabases
   set category = 0
   where name = 'db_empl'
go
exec sp_configure 'allow updates', 0

reconfigure with override
go