Fix bug#31150 "Test case does not cleanup":

Add the cleanup by dropping the database 'track' in test "rpl_bug31076".

mysql-test/suite/rpl/r/rpl_bug31076.result

@@ -61,3 +61,5 @@ visits_id	myid	src	ip	cc	org	ref	time	host	entry	visit_exit	user_id	visit_start
 SELECT * FROM visits_events;
 event_id	visit_id	timestamp	src	data	visits_events_id
 20000	21231038	2007-09-18 03:59:02		Downloads/MySQL-4.1/mysql-4.1.12a-win32.zip	33712207
+DROP DATABASE track;
+End of 5.1 tests

mysql-test/suite/rpl/t/rpl_bug31076.test

@@ -111,3 +111,7 @@ VALUES ('3m3l4rhs6do0sf5p1i9lr94g928a272v', '', '', INET_ATON('71.118.124.98'),
 
 SELECT * FROM visits;
 SELECT * FROM visits_events;
+
+# Cleanup
+DROP DATABASE track;
+--echo End of 5.1 tests